Al Dabbas, Moutaz, Mohammed Y. Eisa, and Weam H. Kadhim. 2023. “Estimation of Gypsum- Calcite Percentages Using a Fourier Transform Infrared Spectrophotometer (FTIR), in Alexandria Gypsiferous Soil -Iraq”. Iraqi Journal of Science 55 (4B): 1916-26. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/10812.