Saijo, Saijo. “Improvement of Sandy Soil Productivity With Chicken Manure Treatment and NPK Fertilizer for Eggplant Plants”. Environmental and Agriculture Management 1, no. 1 (May 21, 2024): 41–50. Accessed February 3, 2026. https://journal.uim.ac.id/index.php/eam/article/view/2636.