Language Article Title Author PDF English Human (Under-) Development and Intra-Ummatic Economic Cooperation Muhammad Ahsan Download English Macroeconomic Returns to Education in South Asia Anjum Siddiqui Download English The Effects of Trade Liberalization on Real Exchange Rate: Evidence from Nigeria Ayodele Jimoh Download English International Tourism in the OIC Countries: Prospects and Challenges Statistical, Economic and Social Research and Training Centre for Islamic Countries Download