Sophie Oberstein
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Bibliography
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Troubleshooting For TrainersAMERICAN SOCIETY FOR TRAINING & DEVELOPMENT11-202032,18€free shipping
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10 Steps To Successful Coaching, 2nd EditionAMERICAN SOCIETY FOR TRAINING & DEVELOPMENT05-202020,59€free shipping
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10 Steps To Successful CoachingAMERICAN SOCIETY FOR TRAINING & DEVELOPMENT06-200928,26€
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Beyond Free Coffee & DonutsAMERICAN SOCIETY FOR TRAINING & DEVELOPMENT02-200334,75€free shipping