Tuanku Jaafar, W. J. “KEPIMPINAN TRADISIONAL MALAYSIA DALAM SISTEM KERAJAAN MONARKI BERPARLIMEN”. JURNAL MELAYU SEDUNIA, vol. 1, no. 1, Sept. 2018, pp. 1-26, https://ejournal.um.edu.my/index.php/jurnalmelayusedunia/article/view/13380.