Prüfung Technischer Betriebswirt/in IHK entschlüsselt, hier klicken!
[youtube http://www.youtube.com/watch?v=5yhEfk4N27s&hl=en&fs=1]
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[youtube http://www.youtube.com/watch?v=Mr7ZbEOOLCM&hl=en&fs=1]
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