H. A. S. Razvanchy, & M. A. Fayyadh. (2023). STUDY SOIL DEVELOPMENT AND CLASSIFICATION IN ERBIL PROVINCE, KURDISTAN, IRAQ USING MATHEMATICAL INDICES. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, 54(6), 1802-1813. https://doi.org/10.36103/ijas.v54i6.1879