Nguyen Thi Nguyen Thao, To Thi Minh Nhan, Huynh Thi Ngoc Ni, Tran Vinh Thien and Nguyen Thi Ngan 2018. Obtaining the extract containing rich content of phenolic compounds from diep ha chau (phyllanthus amarus ) grown in phu yen province for medication purposes. Journal of Technical Education Science. 13, 4 (Jul. 2018), 51–56.