Ranjan,Rajanee. (1998). Encyclopedia of marketing research. Anmol Publications Pvt. Ltd.
Dyfyniad Arddull ChicagoRanjan,Rajanee. Encyclopedia of Marketing Research. New Delhi: Anmol Publications Pvt. Ltd, 1998.
Dyfyniad MLARanjan,Rajanee. Encyclopedia of Marketing Research. Anmol Publications Pvt. Ltd, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.