O. O. ELEMILE, et al. “Assessment of Levels of Some Physico-Chemical Parameters and Heavy Metals of Orisa River, Omu-Aran, Nigeria”. UNIABUJA Journal of Engineering and Technology (UJET), vol. 1, no. 1, Apr. 2025, https://ujet.uniabuja.edu.ng/index.php/ujet/article/view/52.