Abdul Rahim Thaha, Asrul1,Halmia Umrah. The Biofertilizer Formulation from Coconut Fiber Waste and Oyster Mushroom Waste as Basic Substrate, the Active Agent of Aspergillussp. IJAST [Internet]. 2020May27 [cited 2024May2];29(05):8601-10. Available from: http://sersc.org/journals/index.php/IJAST/article/view/18691