Some remarks on E-minimal graphs. - H. P. Yap (Discret. Math., 1977)

On the critical graph conjecture. - Hian Poh Yap (J. Graph Theory, 1980)

On graphs whose maximal subgraphs have at most two orbits. - Hian Poh Yap (Discret. Math., 1981)

On graphs critical with respect to edge-colourings. - Hian Poh Yap (Discret. Math., 1981)

A construction of chromatic index critical graphs. - Hian Poh Yap (J. Graph Theory, 1981)

Chromatic index critical graphs of order 9. - Amanda G. Chetwynd; H. P. Yap (Discret. Math., 1983)

Packing a tree with a graph of the same size. - Peter J. Slater; S. K. Teo; H. P. Yap (J. Graph Theory, 1985)

Two Theorems on Packings of Graphs. - S. K. Teo; H. P. Yap (Eur. J. Comb., 1987)

Packing of graphs - a survey. - H. P. Yap (Discret. Math., 1988)

Corrigendum to: on graphs critical with respect to edge-colourings. - H. P. Yap (Discret. Math., 1990)

Packing two graphs of ordern having total size at most 2n - 2. - S. K. Teo; H. P. Yap (Graphs Comb., 1990)

Total chromatic number of complete r-partite graphs. - K. H. Chew; H. P. Yap (J. Graph Theory, 1992)

Generalization of two results of Hilton on total-colourings of a graph. - H. P. Yap (Discret. Math., 1995)

Edge Colouring of K2n with Spanning Star-Forests Receiving Distinct Colours. - H. P. Yap; Qi Zhang Liu (Graphs Comb., 1999)

Proof of a conjecture of Alan Hartman. - Qi Zhang Liu; H. P. Yap (J. Graph Theory, 1999)

Edge colorings of K2n with a prescribed condition - I. - Qi Zhang Liu; H. P. Yap (Discret. Math., 2000)

Chromatic Index Critical Graphs of Even Order with Five Major Vertices. - Zi-Xia Song; H. P. Yap (Graphs Comb., 2005)