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Kuswandi H, Syawal Harahap F, Hariyati Adam D, Ayu Putri Septiyani I. Mapping Nutrient Status of Phosphate, Soil pH and Organic Carbon of Paddy Fields In Meijan Village Balige District Toba Regency. IJSE [Internet]. 2024 Feb. 29 [cited 2025 Mar. 10];4(1):18-22. Available from: https://ijsenet.com/index.php/IJSE/article/view/94