出版社 Indaba Training Specialists, Inc.

Cover for Hellen Davis · Influence and Communication (Paperback Book) (2002)

Influence and Communication (2002)

Cover for Hellen C Davis · Disc Encyclopedia (Paperback Book) (2011)

Disc Encyclopedia (2011)

Cover for Hellen Davis · Leadership Behavior Coaching : The Art of Asking Purposeful Questions (Hardcover Book) (2019)

Leadership Behavior Coaching : T... (2019)

Cover for Davis Hellen · DISCflex Recovery - A Book About Me (Paperback Book) (2018)

DISCflex Recovery - A Book About Me (2018)