Najeh Zribi, Hajer, and Mahmoud ZOUAOUI. 2013. “The New Challenges of Innovation: The Future of Subcontracting Facing the Threat of the Environment”. International Journal of Management Excellence (ISSN: 2292-1648) 2 (1):113-21. https://techmindresearch.org/index.php/ijme/article/view/82.