Do, Giap, Du Thai, and Thuyen Doan. “STUDY ON MORPHOGENESIS OF BLACK PEPPER (PIPER NIGRUM L.) IN LEAF THIN CELL LAYER CULTURE”. VNUHCM Journal of Science and Technology Development 12, no. 17 (November 15, 2009): 106-110. Accessed July 31, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/2374.