Olowosaye, Pius. “Distribution and Availability of Nitrogen Forms in Soils Containing Ferromanganese Concretion Nodules under Contrasting Land Use Systems in Southern Guinea Savannah”. International Journal of Intellectual Discourse 9, no. 1 (April 22, 2026). Accessed May 1, 2026. https://www.ijidjournal.org/index.php/ijid/article/view/1084.