Abdulhalim Musa Abubakar; Abdulghaffaar Assayyidi Yusuf; Suleiman A. Wali; Aliyu Buba Ngulde. Comparison of the First Order and Modified First-Order Model for Biogas Production from Chicken Manure in Maiduguri, Borno State of Nigeria. IJSMR 2023, 1, 73-84.