Syamsidi, Armini, et al. “Optimization of Fermentation Condition for Hydrolytic Enzyme Production by Endophytic Bacteria from Kleinhovia Hospita L”. Jurnal Sains Farmasi & Klinis, vol. 13, no. 1, June 2026, pp. 47-60, doi:10.25077/jsfk.13.1.47-60.2026.