Truong Ngoc Quynh Phuong, Pham Van Hung, and Nguyen Thi Lan Phi. 2021. “Extraction of Flavonoids in pomelos’ Peels Using Box-Behnken Response Surface Design and Their Biological Activities”. Vietnam Journal of Science, Technology and Engineering 63 (2):52-57. https://doi.org/10.31276/VJSTE.63(2).52-57.