Ogunlade, Moses, and Asowata Frank Efe. “Land Preparation Methods and Land Use and Their Effects on Soil Fertility in Relation to Cocoa Establishment in an Alfisol in Southwestern Nigeria”. The International Journal of Science & Technoledge 5, no. 5 (May 31, 2017). Accessed July 7, 2024. http://internationaljournalcorner.com/index.php/theijst/article/view/123544.