Ahmed , Hussien Ghni, Murtadha Jabbar Issa, and Jaffar Hussain Ali. “Study of Limestones from the Nfayil Formation in Bahr Al-Najaf Depression and Suitability for Thermal Conductivity”. Iraqi Journal of Science 63, no. 7 (July 31, 2022): 2980–2986. Accessed June 24, 2026. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/4924.