Hau, Nguyen Trung, Bui Thi Tuong Thu, and Tran Van Minh. 2012. “Micropropagation of Coffea Sp. By Somatic Embryogenesis Cultures Technique”. Academia Journal of Biology 33 (2):64-75. https://doi.org/10.15625/0866-7160/v33n2.753.