TI - The linear programming model for predicting the level of labour employment after dam failure by using dummy variable technique AU - TORABI, H.A. AU - NAJARCHI, M. AU - MAZAHERI, H. AU - JAFARINIA, R. AU - IZADIKHAH, M. SO - Sigma Journal of Engineering and Natural Sciences 2023;41:503-511. DO - 10.14744/sigma.2023.00057