Woo, Julia T.
Group discussion: a practical guide to participation and leadership / Julia T. Wood, Gerald M. Philips and Douglas J. Pedersen
Harper & Row , 1986
 Buku Teks
Woods, Donald R.
Problem-based learning: how to gain the most from PBL / Donald R. Woods
Waterdown, 1994
 Buku Teks
Vrooman, Rona J.
Group process tools: teams & quality
[American Society for Training & Development Press, American Society for Training & Development Press], 2000
Prince, George M.
The practice of creativity; a manual for dynamic group problem solving, / by George M. Prince
Harper & Row , 1970
 Buku Teks
Galanes, Gloria J.
Effective group discussion: theory and practice
McGraw-Hill, 2013
 Buku Teks