Mereen Hassan Fahmi, Dr. “Method Of Characteristics In Plates And Multi-Material Beams”. Al-Rafidain Engineering Journal (AREJ) 15, no. 1 (March 1, 2007): 56–71. Accessed October 5, 2025. https://alaw.uomosul.edu.iq/index.php/arej/article/view/30723.