Ismail Marzuki, T. Irmansyah, and Ferry Sitepu. “Application of Natural Growth Regulator on Viability of Soursop Seeds (Annona Muricata Linn.)”. Jurnal Online Pertanian Tropik 8, no. 2 (January 10, 2022): 135–143. Accessed December 19, 2025. https://idjpcr.usu.ac.id/jpt/article/view/8077.