Hoang, Le, Pham Thi Phuong, Nguyen Thi Hanh, Ho Ba Do, & Nguyen Quang Huy. " Study of Ultrasound-assisted Acid Hydrolysis to Obtain Quercetin and their Antioxidant Activities from some Plants." VNU Journal of Science: Natural Sciences and Technology [Online], 35.4 (2019): n. pag. Web. 1 Sep. 2024