The impact of applying TQM standards to performance of Ngueli Customs Station (Tchad). Journal Of Development Studies & Entrepreneurship, [S. l.], v. 2, n. 1, p. 21–37, 2024. Disponível em: https://review.univ-oeb.dz/ojs.jdse/index.php/jdse/article/view/15.. Acesso em: 5 dec. 2025.