Susilowati, Arida, Alfan Gunawan Ahmad, and David Raymod Sirait. 2019. “Adaptability of Kemenyan Toba (Styrax Sumatrana) and Suren (Toona Sureni) On Gold Mining Tailing”. Journal of Sylva Indonesiana 2 (01):11-19. https://doi.org/10.32734/jsi.v2i01.907.