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Sonja Hammel
Sonja Hammel is the author of "Werbewirksamkeit des Mobile Marketing", "Mobiles Marketing - Welche Erkenntnisse Liefert Die Forschung?" and "Wirkung Von Werbung in Sozialen Netzwerken".
Books by Sonja Hammel
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Werbewirksamkeit ...
Hammel, Sonja
Undefined:
$21.90
Mobiles Marketing...
Hammel, Sonja
Paperback:
$39.90
Mobiles Marketing...
Hammel, Sonja
Paperback:
$58.50
Wirkung Von Werbu...
Hammel, Sonja
Paperback:
$23.50