Razali, Nurul Aimi, et al. “Mahathir Mohamad As a World-Class Leader: A View from The Great Man Theory of Leadership”. Journal of Techno-Social, vol. 14, no. 2, Dec. 2022, pp. 45-58, https://penerbit.uthm.edu.my/ojs/index.php/JTS/article/view/12455.