Buku Teks
Dunckel, Jacqueline, author
Self-Counsel, 1984
Koleksi Publik
Whitw
Buku Teks
Rae, Leslie, author
Bhuana Ilmu Populer, 2005
Buku Teks
Wircenski, Jerry L., author
[American Society for Training and Development Press, American Society for Training and Development Press], 2005
eBooks