Abdul Ghani, A. A., E. A. Aljack, M. Daud, and M. Z. Bardaie. “Development of Expert Database System For Environmental Impact Assessment (EDEIA)”. Malaysian Journal of Computer Science, vol. 12, no. 1, June 1999, pp. 19-27, https://mjcs.um.edu.my/index.php/MJCS/article/view/5742.