khoudour, samir, and abdelmalek. .bensebti. “Sources and Requirements of Professional Competencies for Information Specialists in the Library Sector: An Analytical Study”. Journal of Social Sciences and Humanities , vol. 13, no. 01, June 2023, p. 713, https://journals.univ-msila.dz/index.php/JOSSH/article/view/1106.