Mohammed, Ghazwan Ahmed, and Amer Abdulkhader Shneat. “Parameters Affecting the Thermodynamic Efficiency of PEM Single Cell and Stack of Cells (Two Cells)”. Iraqi Journal of Chemical and Petroleum Engineering 17, no. 3 (September 30, 2016): 91–100. Accessed May 5, 2024. https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/216.