Abdurahman, S. et al. 2026. Effect of NPK fertilizer dose to improve brazilian spinach (Alternanthera sissoo) growth in the Jakabaring Kitchen Garden, South Sumatera. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands. 15, 2 (Oct. 2026), 139–146. DOI:https://doi.org/10.36706/jlso.15.2.2026.801.