Kong, Yee Yan Eveline, and Hamsawi Sani. “Establishment of Axenic Explants and Callus Induction of Vernonia Amygdalina Del.”. Borneo Journal of Resource Science and Technology 6, no. 2 (January 17, 2017): 28-34. Accessed April 28, 2024. https://publisher.unimas.my/ojs/index.php/BJRST/article/view/341.