Hoang , Minh Hao, and Thi Bich Van Pham. 2017. “Cytotoxic Coumaric Acid Dervatives from Premna Serratifolia L. On Human Colon Cancer Cell Dld-1”. Journal of Technical Education Science 12 (3):64-69. https://www.jte.edu.vn/index.php/jte/article/view/527.