Garbutt, Douglas, author
Pustaka Binaman Pressindo, 1994
Buku Referensi
Russell, Lou, author
[American Society for Training & Development Press;, ], 2000
eBooks
Hasbullah, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1981
UI - Skripsi (Membership)
Bear, Mariah, author
McGraw-Hill , 2000
Buku Teks
Garbutt, Douglas, author
Pustaka Binaman Pressindo, 1994
Buku Teks