PPSC Past Paper Junior Clerk 2019 Revenue Department Solved MCQs, Islamic Studies MCQs, PPSC Solved Past Papers MCQsWhat is Istelam?A. Salam to Kaaba B. Salam to Hijre Aswad C. Kissing Hajre Aswad D. Praying at Muqam-e-Ibrahim What is the other name of Muhammad Ali Bogra Formula?WWW stands for ________?