Ibeh , Nkiruka Joy, Afoke Victor Usiayo, and M. Horsfall. 2025. “ Experimental and Economic Evaluation of Cocoa-Pod Waste As a Bio-Surfactant for Enhanced Oil Recovery in Niger Delta Sandstone Reservoirs”. Researchers Journal of Science and Technology 5 (5):53-64. https://rejost.com.ng/index.php/home/article/view/206.