Akinfiresoye, Waleola Ayo, and John Akintomide Ogidan. 2024. “Discovering the Macro-Elements Presence in Biochar Produced Indigenously”. ABUAD Journal of Engineering Research and Development (AJERD) 7 (1). Ado-Ekiti, Nigeria:208-13. https://doi.org/10.53982/ajerd.2024.0701.21-j.