Kuswanda, Wanda, and Sriyanti Puspita Barus. 2017. “Keanekaragaman Dan Penetapan ‘Umbrella Species’ Satwa Liar Di Taman Nasional Gunung Leuser”. Jurnal Penelitian Kehutanan Wallacea 6 (2):113-23. https://doi.org/10.18330/jwallacea.2017.vol6iss2pp113-123.