“Geochemical Assessment of Oligocene Limestone for Conceivable Use As Raw Material for Portland Cement in Sangaw Area, Iraqi Kurdistan: Geochemical Assessment of Oligocene Limestone for Conceivable Use As Raw Material for Portland Cement in Sangaw Area, Iraqi Kurdistan”. 2024. Tikrit Journal of Pure Science 29 (3): 39-46. https://doi.org/10.25130/tjps.v29i3.1601.