Kuswanda, W. ., & Barus, S. P. . (2017). Keanekaragaman dan Penetapan “Umbrella Species” Satwa liar Di Taman Nasional Gunung Leuser. Jurnal Penelitian Kehutanan Wallacea, 6(2), 113–123. https://doi.org/10.18330/jwallacea.2017.vol6iss2pp113-123