Semiadi, Gono, and Irvan Sidik. “Karakteristik Penangkapan Ular Di Wilayah Sumatera Utara”. Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati 16, no. 2 (June 1, 2011): 206–213. Accessed October 12, 2025. https://ojs.uajy.ac.id/index.php/biota/article/view/101.