bendjama, brahim. “Psychological Impacts of (4x4) Shift Work Field Study at the Natural Gas Liquefaction Complex in Skikda”. Journal of Social Sciences and Humanities 15, no. 02 (December 15, 2025): 256. Accessed December 23, 2025. https://journals.univ-msila.dz/index.php/JOSSH/article/view/2949.