1. With O. D. Dickerson: A GENERAL RISK THEORY, Journal of Risk and Insurance, Vol. 30(1964), pp 451-461.

2. DERIVATIONS ON p-ADIC FIELDS, Transactions of the American Mathematical Society, Vol. 115(3), March (1965), pp. 496-504.

3. QUASI-MULTIPLICATIONS AND INERTIAL AUTOMORPHISMS, Mathematical Centre Publications ZW-1965-003, 4 + 13 p.

4. VALUATION SPACES, Mathematical Centre Publications, ZW-1964-010,13 p.

5. ALGEBRAIC NUMBER THEORY, Cassels-Frohlich Editor, Academic Press, 1967: Contributor, pp. 129-161.

6. SOME AUTOMORPHISM GROUPS IN NOETHERIAN DOMAINS, Bulletin of the American Mathematical Society, Vol. 75(3), May (1965), pp. 572-575.

7. With B. S. Chwe: ON THE EXTENSION OF LINEARLY INDEPENDENT SUBSETS OF FREE MODULES TO BASES, Proceedings of the American Mathematical Society, Vol. 24(3), March (1970), pp. 466-470.

8. With B. S. Chwe: LOCAL RINGS WITH LEFT VANISHING RADICAL, J. London Math. Soc. (2), 4(l971), pp. 374-378.

9. With P. Allen: A CHARACTERIZATION OF STEINITZ GROUP RINGS, Proceedings of the American Mathematical Society, Vol. 49 (1975), pp. 39-42.

10. RINGS WITH MANY ENDORMORPHISMS, Canad. Math. Bull. Vol. 19 (2), 1976, pp. 199-204.

11. With B. S. Chwe: SOME CLASSES OF RINGS DEFINED BY PROPERTIES OF MODULES, Revista de la UMA, Vol. (28), 1976), pp. 54-59.

12. CYCLIC RINGS, REVISTA DE LA UMA, VOL. (28), 1977, pp. 108-114.

13. PARTIALLY ORDERED SETS AND GROUPOIDS, Kyungpook Mathematical Journal, Vol. 16(1), June 1976, pp. 7-20.

14. ON THE NUMBER OF ISOMORPHISM CLASSES OF CERTAIN TYPES OF FINITE ALGEBRAS, Kyungpook Mathematical Journal, Vol. 16(2), Dec. 1976, pp. 141-147.

15. ON THE NUMBER OF ISOMORPHISM CLASSES OF CERTAIN TYPES OF ACTIONS AND BINARY SYSTEMS, Kyungpook Mathematical Journal, Vol. 16, (2), Dec. 1976, pp. 161-176.

16. COUNTING FINITE POSETS, Acta Math. Acad. Sc. Hungaricae, 31(3-4), pp. 233-258.

17. REPRESENTATIONS OF FINITE PARTIALLY ORDERED SETS, JCISS 3(3), pp. 113-133, 1978.

18. COMBINATORIAL SYMBOLS AND FINITE POSETS, JCISS 4(4), pp. 309-342, 1979.

19. FINITE MODULES AND COMBINATORICS, Journal of the Korean Math Soc., VOl. 15(2), Feb. 1979, pp. 63-75.

20. With K. H. Kim, L. Makar-Limanov, F. W. Roush: GRAPH ALGEBRAS, Journal of Algebra, Vol. 64(1), May 1980, pp. 46-51.

21. With P. J. Allen, CENTRAL PERFECT RINGS, Journal of the Korean Math. Soc., Vol. 17(1), August 1980, pp. 53-80.

22. REPRESENTATIONS OF FINITE POSETS AS LINEAR OPERATORS, JCISS Vol. 6(1981), No. 3, pp. 279-293.

23. REDUCED BRYLAWSKI DECOMPOSITIONS OF FINITE POSETS, JCISS 7(1982), No. 3, 180-196.

24. with B. S. Chwe, THE JACOBSON DENSITY THEOREM AND SOME APPLICATIONS, Journal of the Kor. Math. Soc., Vol. 18(2), Feb. 1982, pp. 141-144.

25. with O. R. Ainsworth: A FAMILY OF POLYNOMIALS AND POWERS OF THE SECANT, the Fibonacci Journal, May 1983, pp. 132-138.

26. With B.S. Chwe, PRIMARY IDEALS, Journal Korean Mathematical Society, 21(1984), No. 2, 141-146.

27. With K. Ingolfsson, ESTIMATES OF THE HORIZON IN MATHEMATICAL MODELS OF MARKETING, Mathematical Social Sciences 7(1984), 199-204.

28. A MESSAGE FROM EZEKIEL, Alabama Journal of Mathematics, 7(1983), No. 2, 5-9.

29. BETTER THAN THE BEST, Alabama Journal of Mathematics, 8(1984), No. 2, 5-8.

30. with D. Runcie: ON THE CONSTRUCTION OF EFFECTIVENESS OF INTERACTION TABLES, Quality and Quantity, 20 (1986), 3-18.

31. with B.S. Chwe and H. Tapia Recillas, THE STANDARD POLYNOMIAL IDENTITY AND COMBINATORIAL PROPERTIES, 4th Annual Conference of Mathematics, Pan American University, Proceedings.

32. RANDOM REAL VALUED ORDER PRESERVING MAPS ON FINITE POSETS, JCISS, 8(2), 101-112, 1983.

33. with O. R. Ainsworth: COMBINATORIAL IDENTITIES AND A CONVOLUTION ALGEBRA OF POWER SERIES, JCISS, 10(1-2), 9-23, 1985.

34. With B.S. Chwe and H. Tapia-Recillas, PREDECESSOR GENERATING-FUNCTIONS, FINITE DIRECTED LABELED GRAPHS AND TAXONOMY, Tamkang Journal, 17(4), 1986, 67-88.

35. with W. S. Hsia and Dennis Runcie, LINES, REGRESSION AND SOME RELATIONS BETWEEN SLOPES AND INTERCEPTS CONSIDERED FROM A GEOMETRIC VIEWPOINT, British Journal of Mathematical and Statistical Psychology, 44, 1-11, 1991.

36. with M. Scott, SUMMED FORMULAS, Bulletin of the Calcutta Mathematical Society, 48(1), 391-403.

37. with B. Earl Wells, ANALYSIS OF A RANDOM DIGRAPH GENERATING TECHNIQUE USED IN THE EVALUATION OF PARALLEL-PROCESSING STATIC TASK ALLOCATION HEURISTICS, Transactions of SSST-meeting held at U of A, March 9-10, 1993.

38. with H.S. Kim, MODULAR POSETS AND SEMIGROUPS, Semigroup Forum, 53 (1996) 57-62.

39. with B.Earl Wells, HANDICAPPING THE JUDGE, Quality and Quantity, 31, 173-191, 1997.

40. with Y.B. Jun and H.S. Kim, ON L-FUZZY IDEALS IN SEMIRINGS I, 82 (1996) 383-386 Fuzzy Sets and Systems

41. With Y.B. Jun and H.S. Kim, ON L-FUZZY IDEALS IN SEMIRINGS I, to appear in Czech Math. Journal.

42. With H.S. Kim, ON D-ALGEBRAS, to appear in Slovak Journal of Mathematics.

43. With Y.B. Jun and H.S. Kim, ON L-FUZZY IDEALS IN SEMIRINGS II, to appear in Czech Math. Journal.

44. With H.S. Kim, DENSITY AND ATTACHMENT FUNCTIONS FOR FINITE POSETS, to appear in the Journal of the Indian Mathematical Society.

45. With H.S. Kim, EXTENSIONS OF L-FUZZY IDEALS IN SEMIRINGS, Kyungpook Mathematical Journal, 38 (1998), 131-135.

46. With H.S. Kim, SELF-DISTRIBUTIVE MODULAR POGROUPOIDS AND POSETS, Kyungpook Mathematical Journal, 38 (1998), 407-409.

47. With H.S. Kim, BASIC POSETS (book), World Scientific Publishing Company, Singapore, 1998.

48. WITH H.S. Kim, Y.B. Jun, ON d-IDEALS IN d-ALGEBRAS, Math Slovaka, 49 (1999), 3, 243-251.  

49. With H.S. Kim, FUZZY POSET ON SETS, to appear in The International Journal for Fuzzy Sets and Systems.

50. With C.A. Libis: Generalized Sums of Powers, Far East Journal of Mathematical Sciences 2(1)(2000), 1-5.

51. With H.S. Kim: FUZZY SUBSETS ARE FUZZY SUBALGEBRAS, Journal of Fuzzy Mathematics, Vol 8 (2), (2000), 315- 318.

52. With H.S. Kim: ON ANALYTIC T-ALGEBRAS, Math Japonica Online vol 4 (2001), 157-163. (52) With H.S. Kim and Y. Kim: VARIETIES OF POSETS AND POSET GEOMETRY, to appear, Math. Slovaca.

53, With Y. B. Jun and H. S. Kim: FUZZY D-IDEALS OF D-ALGEBRAS, Journal of Fuzzy Mathematics Vol. 8 (2000), 123-130.

54. With H.S. Kim: FUZZY RELATIONS IN BCK-SKELETON POGROUPOIDS, Journal of Fuzzy Mathematics Vol 8 (3), (2000), 753-756.

55. ON D-FUZZY FUNCTIONS IN D-ALGEBRAS (with A. Dvurevenskij and H.S. Kim) Functions of Physics Vol 30 (10) (2001) 1805-1815.

56. With H.S. Kim: ALGEBRAS ASSOICATED WITH POSETS. To Appear: Demonstatio Matematica Vol 34 (2001)