Heidari, Mozhgan, et al. “Design and Validation of a Native Conceptual Model for Evaluating and Improving Internal Audit Performance in the Iranian Petrochemical Industry Using a Mixed-Methods Approach”. Business, Marketing, and Finance Open, vol. 1, no. 6, Dec. 2024, pp. 184-95, https://doi.org/10.61838/bmfopen.1.6.15.