Hj. Ismail, Z. “MESEJ NASIONALISME DAN ISLAM DALAM SAJAK-SAJAK ZULKIFLI MUHAMMAD”. Jurnal Pengajian Melayu (JOMAS), vol. 25, no. 1, Aug. 2020, pp. 216-38, http://adum.um.edu.my/index.php/JPM/article/view/25691.