Iyama, William Azuka, and Onisogen Simeon Edori. “Comparative Study of Organic Parameters of Soils from Three Selected Universities in Port Harcourt Metropolis, Nigeria”. European Journal of Applied Sciences 9, no. 1 (February 10, 2021): 21–34. Accessed December 3, 2024. http://804474.wannyin.cyou/index.php/AIVP/article/view/9114.