Chin, W. C., K. W. Hua Yeow, and K. L. Ng. “Web Server Future Planning Decision Analysis - Fuzzy Linguistic Weighted Approach”. Malaysian Journal of Computer Science, vol. 13, no. 2, Dec. 2000, pp. 48-53, https://juku.um.edu.my/index.php/MJCS/article/view/5833.