Tran, Nhung, Hoang Phan, and Sanh Nguyen. “Somatic Embryogenesis from Hoan Ngoc(Pseuderanthemum Palatiferum (Ness) Radlk) Leaf Callus”. VNUHCM Journal of Science and Technology Development 17, no. 2 (June 30, 2014): 100-107. Accessed August 30, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1319.