Apata, Gbemileke. “Illicit Trade and Extortion: The Nexus Between Boko Haram’s Revenue Streams and Regional Instability”. International Journal of Sustainable Social Science (IJSSS) 3, no. 5 (October 30, 2025): 355–362. Accessed June 13, 2026. https://aprmultitechpublisher.my.id/index.php/ijsss/article/view/108.