PUCI, Jona, and Suzana GUXHOLLI. “Business Internal Auditing – An Effective Approach in Developing Sustainable Management Systems”. European Journal of Sustainable Development 7, no. 2 (June 1, 2018): 101. Accessed March 29, 2024. https://www.ecsdev.org/ojs/index.php/ejsd/article/view/644.