Abdullah, R., A. Zainal, W. Y. Heng, L. C. Li, Y. C. Beng, L. M. Phing, S. A. Sirajuddin, W. Y. S. Ping, J. L. Joseph, S. A. Jusoh, M. Rashdan Muad, and Y. Li Huey. “Immature Embryo: A Useful Tool for Oil Palm (Elaeis Guineensis Jacq.) Genetic Transformation Studies”. Electronic Journal of Biotechnology, vol. 8, no. 1, Apr. 2005, pp. 0-0, https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v8n1-1.