Zahra, Nur Lutfiatuz, and Gunardi Djoko Winarno. “Studi Populasi Siamang (Simphalangus Syndactylus) DI Hutan Lindung Register 25 Pematang Tanggang Kabupaten Tanggamus”. Jurnal Sylva Lestari 5, no. 3 (July 31, 2017): 66–76. Accessed May 7, 2024. https://sylvalestari.fp.unila.ac.id/index.php/JHT/article/view/262.