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Dyfyniad Arddull Chicagocentad. South Asian Yearbook of Trade and Development 2005. New Delhi: New concept information system, 2005.
Dyfyniad MLAcentad. South Asian Yearbook of Trade and Development 2005. New concept information system, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.