Zawacki-Richter, O., & Qayyum, A. (2019). Open and Distance Education in Asia, Africa and the Middle East: National Perspectives in a Digital Age. Springer Nature.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZawacki-Richter, Olaf, और Adnan Qayyum. Open and Distance Education in Asia, Africa and the Middle East: National Perspectives in a Digital Age. Singapore: Springer Nature, 2019.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZawacki-Richter, Olaf, और Adnan Qayyum. Open and Distance Education in Asia, Africa and the Middle East: National Perspectives in a Digital Age. Springer Nature, 2019.
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