Abdulhalim Musa Abubakar, Abdulghaffaar Assayyidi Yusuf, Suleiman A. Wali and Aliyu Buba Ngulde 2023. Comparison of the First Order and Modified First-Order Model for Biogas Production from Chicken Manure in Maiduguri, Borno State of Nigeria. International Journal of Scientific Multidisciplinary Research. 1, 2 (Mar. 2023), 73–84. DOI:https://doi.org/10.55927/ijsmr.v1i2.3320.