KERTOUS, Mourad. “ANALYSIS OF WILLINGNESS TO PAY OF ALGERIAN SUBSCRIBERS FOR IMPROVE THE QUALITY OF RESIDENTIAL WATER SERVICE”. Les Cahiers du CREAD, no. 98/99 (June 5, 2018): pp. 103-124. Accessed December 5, 2025. https://revue.cread.dz/index.php/les-cahiers-du-cread/article/view/351.