Pancaningtyas, Sulistyani. “Callogenesis and Embryogenic Potential of New Superior Cocoa (Theobroma Cacao L.) Genotypes Treated With Ascorbic Acid”. Pelita Perkebunan (a Coffee and Cocoa Research Journal) 37, no. 3 (December 27, 2021): 184-196. Accessed January 20, 2022. https://ccrjournal.com/index.php/ccrj/article/view/472.