Yousif, Mazin Victor, Nazar Kais M. Naief, and Yahya M. Hamad. 2008. “Optimum Height of Plate Stiffener under Pressure Effect”. Nahrain University College of Engineering Journal 11 (3): 459-68. https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/542.