EKINCI, Y. (2015). Designing research questionnaires: For business and management students. Sage Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEKINCI, Yuksel. Designing Research Questionnaires: For Business and Management Students. Sage Publications, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEKINCI, Yuksel. Designing Research Questionnaires: For Business and Management Students. Sage Publications, 2015.
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