Shamsudin, A. F., Z. N. Zainul Rashid, A. Tajuddin, and S. Saidin. “The Theory Of Equilibrium In Wasatiyyah Management Of Public Choices”. Al-Qimah Al-Mudhafah, vol. 2, no. 1, Dec. 2016, p. 6, http://jurnal.usas.edu.my/alqimah/index.php/journal/article/view/33.