R. Hasputri, S. Sudradjat, and S. Sugiyanta, “organic fertilizer; NPK compound fertilizer; vegetative growth; productivity”., IJSBAR, vol. 36, no. 1, pp. 213–225, Sep. 2017, Accessed: Nov. 12, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/7981