Mohammed, G. and Shneat, A. (2016) “Parameters Affecting the Thermodynamic Efficiency of PEM Single Cell and Stack of Cells (Two Cells)”, Iraqi Journal of Chemical and Petroleum Engineering, 17(3), pp. 91-100. Available at: http://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/216 (Accessed: 27November2019).