Hamdar, B., H. Hejase, and J. Boulos. “Managerial Efficiency Modeling of Water Use in the Republic of Lebanon”. Journal of Social Sciences (COES&Amp;RJ-JSS), vol. 4, no. 1, Jan. 2018, pp. 726-44, doi:10.25255/jss.2015.4.1.726.744.