Abdulateef, O., Khalid, E., & Hoss, A. (2013). Drilling of FR-4 Composite Materials Using Single Pulse of Nd:YAG Laser. Al-Khwarizmi Engineering Journal, 9(2), 1-11. Retrieved from https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/163