Roy, R. K. (1978). Assortment from Tribal Research Institute Meghalaya, Shillong. Dept. of Education, Tribal Research Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoy, R. Kostan. Assortment from Tribal Research Institute Meghalaya, Shillong. Shillong, Meghalaya: Dept. of Education, Tribal Research Institute, 1978.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoy, R. Kostan. Assortment from Tribal Research Institute Meghalaya, Shillong. Dept. of Education, Tribal Research Institute, 1978.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.