Bach Phuong, Vu Thi, Tran Thi Ta Oanh, and Quach Ngo Diem Phuong. 2018. “Biological Activity and in Vitro Spine Culture of Opuntia Dillenii (Ker Gawl.) Haw”. Vietnam Journal of Biotechnology 16 (1):137-47. https://doi.org/10.15625/1811-4989/16/1/13458.