Muhammad, Sohail, 		Siddiqui, Humair Ahmed, 		Abro, Muhammad Ishaque, 		Usmani, Adil, AND 		Malick, Muhammad Amjad Anwar.
" Bacillus Subtilis as Self-Healing Agent in Cement Mortar: The Effect of Curing Time and Amount of Calcium Lactate on Strength" <em>Mehran University Research Journal of Engineering and Technology</em> [Online], Volume 40 Number 4 (1 October 2021)