H. P. Yap

Computational complexity of graph properties

H. P. Yap, H. Yap, 1984 .

Combinatorics and Graph Theory: Proceedings of the Spring School and International Conference on Combinatorics

H. P. Yap, T. H. Ku, E. K. Lloyd, 1993 .

Structure of maximal sum-free sets in $C_p$

H. P. Yap, 1970 .

Maximal Sum-Free Sets of Elements of Finite Groups

H. P. Yap, P. H. Diananda, H. Yap, 1969 .

Total chromatic number of graphs of high degree

Wang Jianfang, H. P. Yap, Zhang Zhongfu, 1989 .

Maximal sum-free sets in finite abelian groups, V

H. P. Yap, 1975, Bulletin of the Australian Mathematical Society.