amar, aidil dkk. 2024. ILham PENGAMATAN POHON TIDUR SIAMANG DAN GIBBON DI STASIUN PENELITIAN SORAYA SUBULUSSALAM: OBSERVATION OF SIAMANG AND GIBBON SLEEPING TREES AT SORAYA SUBULUSSALAM RESEARCH STATION). Jurnal Lingkungan Almuslim. 3, 2 (Agu 2024), 007–013.