Yaacob, M., and M. Mamat. “TARBIAH ALAM DALAM NOVEL KOMSAS: OVERREACH AND ENVIRONMENTAL”. Jurnal Pengajian Melayu (JOMAS), vol. 25, no. 1, Dec. 2014, pp. 62-101, https://ojie.um.edu.my/index.php/JPM/article/view/9758.