M. Y. . Abduh, A. T. . Rahmanita, E. R. . Maulana, V. F. . Nadhira, T. I. Indira, and R. . Manurung, “Valorization of Lower Grade Resin, Bark, and Fruit of Styrax Sumatrana”, ijirss, vol. 5, no. 1, pp. 30–36, Feb. 2022.