Azzi, Malika, Javier Calatrava, and Slimane Bedrani. “Farmers’ Willingness to Pay for Surface Water in the West Mitidja Irrigated Perimeter, Northern Algeria”. Spanish Journal of Agricultural Research 16, no. 1 (April 26, 2018): e0101. Accessed August 13, 2022. https://revistas.inia.es/index.php/sjar/article/view/12073.