Towards Representation and Validation of Knowledge in Students' Learning Pathway Using Variability Modeling Technique - Abdelrahman Osman Elfaki; Md Gapar Md Johar; Kevin Loo Teow Aik; Sim Liew Fong; Ruzi Bachok (CoRR, 2011)

Towards Measuring of E-Learning Usability through User Interface. - Abdelrahman Osman Elfaki; Yucong Duan; Ruzi Bachok; Wencai Du; Md Gapar Md Johar; Sim Liew Fong (IIAI-AAI, 2013)