Noerhadi, E., T. Yasuda, Arbayah Siregar, and Risco G. Budji. 2019. “Induction of Somatic Embryos in Cultured Leaf Explants of Coffea Arabica”. Journal of Mathematical and Fundamental Sciences 18 (2/3):41-49. https://journals.itb.ac.id/index.php/jmfs/article/view/9518.