Rustiani, Erni, et al. “Analysis of Flavonids and Terpenoids in Ethanol Extract of Colocasia Esculenta L. (Schoot) Stalk and Leaves”. Journal of Tropical Pharmacy and Chemistry, vol. 5, no. 4, Dec. 2021, pp. 359-64, doi:10.25026/jtpc.v5i4.349.