Yu HY, Rua HT. AN INVESTIGATION OF RESEARCH ON EVOLUTION OF ALTRUISM USING INFORMETRIC METHODS AND THE GROWING HIERARCHICAL SELF-ORGANIZING MAP. MJLIS [Internet]. 2010 Dec. 31 [cited 2024 Apr. 26];15(3):1-17. Available from: https://mjlis.um.edu.my/index.php/MJLIS/article/view/6938