Utrecht, Elien
Ichtiar baru, 1985
Buku Teks
Amrah Muslimin
Alumni, 1985
Buku Teks
Willmore, Joe
[American Society for Training and Development Press;American Society for Training and Development Press, American Society for Training and Development Press], 1998
eBooks
Chandler, John
McGraw-Hill, 1982
Buku Teks
Fandis Ekyawan
2002
UI - Tesis (Membership)