Hakim, C. (2000). Research design: Successful designs for social and economic research (2nd ed.). Routledge.
استشهاد بنمط شيكاغوHakim, Catherine. Research Design: Successful Designs for Social and Economic Research. 2nd ed. London: Routledge, 2000.
MLA استشهادHakim, Catherine. Research Design: Successful Designs for Social and Economic Research. 2nd ed. Routledge, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.