APA (7 वां संस्करण) प्रशस्ति पत्र
Sanyal, B. C., & Yacoub, e. S. A. (1975). Higher education and employment in the Sudan. International Institute for Educational Planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Sanyal, Bikas C., और el Sammani A. Yacoub. Higher Education and Employment in the Sudan. Paris: International Institute for Educational Planning, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Sanyal, Bikas C., और el Sammani A. Yacoub. Higher Education and Employment in the Sudan. International Institute for Educational Planning, 1975.
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