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Dyfyniad Arddull ChicagoSudarshan Rana. Open Learning in India. Newdelhi: Common Wealth Publishers, 1994.
Dyfyniad MLASudarshan Rana. Open Learning in India. Common Wealth Publishers, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.