Prof Jean Razafindravonona, and Dr Jean Lucien Razafindrakoto. “Trend of Madagascar’s Trade Flows in COMESA: A Gravity Model Approach”. Academics and Science Reviews Materials, no. 1 (November 12, 2022). Accessed July 21, 2026. https://ojs.publisher.agency/index.php/ASCRM/article/view/258.