Ripon, Shamim Hasnat, Kamrul Hasan Talukder, and Md. Khademul Islam Molla. “Modeling Variability for System Families”. Malaysian Journal of Computer Science 16, no. 1 (June 1, 2003): 37–46. Accessed December 28, 2024. https://jati.um.edu.my/index.php/MJCS/article/view/6117.