OMOTOSO, A. J., E. O. DADA, and O. OYEDEJI. “Physicochemical and Microbiological Assessment of Selected Hand-Dug Wells for Water Quality in Ilesa Metropolis, Southwest Nigeria”. Notulae Scientia Biologicae, Vol. 10, no. 1, Mar. 2018, pp. 52-59, doi:10.15835/nsb10110058.