صقور مجد, and الشريف بتول. “The Impact Of Market Knowledge On Marketing Performance (A Field Study In Food Industries Companies Operating In Damascus And Its Countryside)”. Tishreen University Journal- Economic and Legal Sciences Series 42, no. 6 (March 29, 2021). Accessed May 17, 2024. https://journal.tishreen.edu.sy/index.php/econlaw/article/view/10474.