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Dyfyniad Arddull ChicagoPanigrahy, Dibakar. Marketing of Plastic Money. Kanishka Publishers Distributors: New Delhi, 1999.
Dyfyniad MLAPanigrahy, Dibakar. Marketing of Plastic Money. 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.