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Dyfyniad Arddull ChicagoCUNNINGHAM M J. B2B HOW TO BUILD A PROFITABLE E-COMMERCE STRATEGY. CAMBRIDGE: PERSEUS PUBLICATIONS, 2001.
Dyfyniad MLACUNNINGHAM M J. B2B HOW TO BUILD A PROFITABLE E-COMMERCE STRATEGY. PERSEUS PUBLICATIONS, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.