Noori, K., کریکار, Salim, S., & سیروان. (2025). The Influence of Shell Permeability on Stability of Upstream Slope during Rapid Drawdown – Khassa Chai Earth Dam as a Case Study. Iraqi National Journal of Earth Science (INJES), 21(2), 15–28. https://doi.org/10.33899/earth.2021.170383