Estimation of Gypsum- Calcite Percentages Using a Fourier Transform Infrared Spectrophotometer (FTIR), in Alexandria Gypsiferous Soil -Iraq. Iraqi Journal of Science. 2023;55(4B):1916-1926. Accessed May 18, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11320