FERROUM Mohamed Salah, AMMARI Samir , RAKI Ahcene , SAAD GUERMECHE Zohra, “The role of internal audit in supporting the competitiveness of enterprises: A field study of a sample of Public economic institutions of the state of Skikda”, PEGEGOG, vol. 15, no. 4, pp. 2945–2964, Dec. 2025.