boudjema, abderrezak, M. Hacini, G. Sabrine, A. Zahrouna, L. Baba Sy, and N. Brinis. “Modeling Groundwater Flow of the Mio-Pliocene Aquifer in the El-Outaya Plain, Biskra (Algeria)”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 17, no. 2, Aug. 2014, pp. 1-14, https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/2491.