Jusoh, Adnan. “Zaman Pra-Islam Di Kedah Berdasarkan Bukti Arkeologi *: Pre-Islamic Era in Kedah Based on Archaeological Remains”. Perspektif Jurnal Sains Sosial Dan Kemanusiaan, vol. 8, no. 1, May 2016, pp. 106-17, https://ejournal.upsi.edu.my/index.php/PERS/article/view/1736.