Haris, Muhammad, Muhammad Khurram Zahoor, Muhammad Saleem Khan, and Javaid Akhtar. 2012. “Carbon Dioxide Sequestration in Geological Sources: A Useful Way to Mitigate Global Warming”. Journal of the Pakistan Institute of Chemical Engineers 40 (1):83-86. http://piche.org.pk/journal/index.php/jpiche/article/view/77.