Hanifa, Nisa Isneni, et al. “Phytochemical Screening of Decoction and Ethanolic Extract of Amomum Dealbatum Roxb. Leaves”. Jurnal Biologi Tropis, vol. 21, no. 2, July 2021, pp. 510-8, doi:10.29303/jbt.v21i2.2758.