Abdul Rahim, Akmal Hisham, et al. “Pilihan Raya Negeri Sarawak 2016: Kempen, Isu Dan Prestasi Parti Politik Oposisi Yang Bertanding: Sarawak State Election 2016: Campaign, Issue and Performance of Each Political Party Contested”. Perspektif Jurnal Sains Sosial Dan Kemanusiaan, vol. 10, no. 3, Dec. 2018, pp. 91-103, https://ejournal.upsi.edu.my/index.php/PERS/article/view/1796.