Parikh word representability of bipartite permutation graphs. - Wen Chean Teh; Zhen Chuan Ng; Muhammad Javaid; Zi Jing Chern (Discret. Appl. Math., 2020)

Double-Controlled Quasi M-Metric Spaces. - Irshad Ayoob; Ng Zhen Chuan; Nabil Mlaiki (Symmetry, 2023)