Aadil, N., G. M. D. Sohail, T. Rehman, and S. Sohail. “STABLE ISOTOPE STUDY OF CALCITE CEMENT AND VEINS FROM NORTHLAND ALLOCHTHON AND BASAL WAITEMATA GROUP ROCKS, NEW ZEALAND”. The Nucleus, vol. 50, no. 4, Oct. 2013, pp. 415-20, http://www.thenucleuspak.org.pk/index.php/Nucleus/article/view/745.