Ahcene, Raki, and Ammari Samir. “The Relative Importance of Tax Collection of Gross Salary Income and Wages in Algeria During the Period 2016-2021: A Case Study of the Wilaya of Skikda”. The journal of contemporary issues in business and government 28, no. 4 (December 31, 2022): 1876–1889. Accessed June 30, 2024. https://cibgp.com/au/index.php/1323-6903/article/view/2723.