F. O. Adekayode and D. T. Akomolafe (2019) “Creating a soil data base in a reconnaissance soil fertility study of an encroached forest reserve in Northern Nigeria for a reforestation programme”, African Journal of Environmental Economics and Management, 7(1), pp. 490–496. Available at: https://elixirpublishers.in/index.php/ajeem/article/view/1061 (Accessed: 22 May 2025).