Idowu, K.A. and Adamu, Z. 2024. Models Development for Prediction of Blast Efficiency and Total Charge in a Typical Quarry. ABUAD Journal of Engineering Research and Development (AJERD). 7, 2 (Jul. 2024), 69–77. DOI:https://doi.org/10.53982/ajerd.2024.0702.07-j.