syahid, Sitti Fatimah, and Lusia Seti. 2022. “Callus Regeneration of Gynura Procumbens (Lour.) Merr. In Vitro”. Jurnal Biologi UNAND 10 (1):15-22. https://doi.org/10.25077/jbioua.10.1.15-22.2022.