Selfa Dwie Andini Br. Tarigan, Yuan Gideon Sinaga, Tuty Ningsih, Tiffany Zia, Eka Bobby Febrianto. NPK NUTRIENT ANALYSIS OF PALM OIL WASTE. IJSET [Internet]. 2023 Apr. 30 [cited 2025 Sep. 11];2(5):596-601. Available from: https://ijset.org/index.php/ijset/article/view/391