Chau Nguyen, Thi Minh, et al. “Ultrasound-Assisted Extraction of Gac (Momordica Cochinchinensis Spreng.) Leaves: Effect of Maturity Stage on Phytochemicals and Carbohydrate-Hydrolyzing Enzymes Inhibitory Activity”. Italian Journal of Food Science, vol. 33, no. SP1, Feb. 2021, pp. 34-42, https://doi.org/10.15586/ijfs.v33iSP1.1987.