أ. أحمد مصطفى أبوبكر الوتوات. “The Strategy of Expansion and Influence-Building in the Russian Tsarist Era”. African Journal of Advanced Studies in Humanities and Social Sciences 1, no. 4 (December 27, 2022): 545–555. Accessed November 5, 2026. https://www.aaasjournals.com/index.php/ajashss/article/view/2191.