Susilowati, Arida, et al. “Adaptability of Kemenyan Toba (Styrax Sumatrana) and Suren (Toona Sureni) On Gold Mining Tailing”. Journal of Sylva Indonesiana, vol. 2, no. 01, May 2019, pp. 11-19, doi:10.32734/jsi.v2i01.907.