Hameed, A., R. A. Pasha, A. R. Khan, M. Z. Khan, and M. Shah. “TO INVESTIGATE THE EFFECT OF HEAT TREATMENT ON FRACTURE TOUGHNESS OF WELDED JOINTS”. The Nucleus, vol. 50, no. 2, June 2013, pp. 165-72, http://www.thenucleuspak.org.pk/index.php/Nucleus/article/view/767.