Nur Hanis Iskandar Zulkarnain, et al. “ALTRUISTIC BEHAVIOUR AMONG MEDICAL STUDENTS: A COMPARATIVE CROSS-SECTIONAL STUDY”. Asian Journal of Medicine & Health Sciences, vol. 4, no. 1, June 2021, pp. 128-36, https://ejournal.unikl.edu.my/index.php/ajmhs/article/view/76.