Mohammad Jazzar, Moneef, Mohamed Daud, Mohd Zohadie Bardaie, Abd Rahman Ramli, and Salim Said. 1998. “A Knowledge-Based Expert System For EIA Using Blackboard Approach”. Malaysian Journal of Computer Science 11 (2):15-22. http://ajba.um.edu.my/index.php/MJCS/article/view/5729.