Omar, Hemn M., and Nawzat R. Ismail. 2015. “The Suitability of Limestone from Pilaspi Formation (Middle-Late Eocene) for Building Stone in Koya Area, NE Iraq”. ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY 3 (2), 18-23. https://doi.org/10.14500/aro.10068.