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Dyfyniad Arddull ChicagoWeitzl, Wolfgang. Measuring Electronic Word-of-Mouth Effectiveness. 1st Ed. 2017. Springer Fachmedien Wiesbaden, 2020.
Dyfyniad MLAWeitzl, Wolfgang. Measuring Electronic Word-of-Mouth Effectiveness. 1st Ed. 2017. Springer Fachmedien Wiesbaden, 2020.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.