On the skewness of the join of graphs. - Gek Ling Chia; Kai An Sim (Discret. Appl. Math., 2013)

Lazy cops and robbers on generalized hypercubes. - Kai An Sim; Ta Sheng Tan; Kok Bin Wong (Discret. Math., 2017)

On the skewness of products of graphs. - Gek Ling Chia; Kai An Sim (Discret. Appl. Math., 2024)