“The impact of applying TQM standards to performance of Ngueli Customs Station (Tchad)”, JDSE, vol. 2, no. 1, pp. 21–37, Dec. 2024, Accessed: Dec. 05, 2025. [Online]. Available: https://review.univ-oeb.dz/ojs.jdse/index.php/jdse/article/view/15