يونان توفيق. “Analysis of Relations and Forces of Production in Extraction And Pearl Industry in the Arabian Gulf 1900-1950 *”. Journal of Economics and Administrative Sciences 15, no. 56 (December 1, 2009): 119. Accessed March 29, 2025. https://jeasiq.uobaghdad.edu.iq/index.php/JEASIQ/article/view/1222.