Bormann, Ernest G.
Speech communication: a basic approach
Harper & Row, 1965
 Buku Teks
Bittel, Lester Robert
The complete guide to supervisory training and development / Lester R. Bittel
Addison-Wesley Publishing Company, Inc., 1987
 Buku Teks
Basic training for trainers: training basics
editor, Cat Sharpe Russo
[American Society for Training and Development Press, American Society for Training and Development Press], 2005
 eBooks
Mitchell, Jennifer K.
Basic trainer competencies: training basics
American Society for Training & Development, 2006
 eBooks
Hulit, Lloyd M.
Born to talk : an introduction to speech and language development / Lloyd M. Hulit, Merle R. Howard
Allyn and Bacon, 1997
 Buku Teks