E. AlShemmary, O. H. Anssari, and A. N. AlTaee, “Rationalization of Energy by Using Prepaid Devices: Najaf City as A Model”, Al-Ghary Jour. Eco. Admini. Sci., vol. 16, no. 1, Dec. 2020, doi: 10.36325/ghjec.v16i1.5908.