Reitman, Annabelle, author
American Society for Training & Development, 2007
eBooks
Kaye, Beverly, 1943-, author
Erlangga , 2004
Buku Teks
Ramdhany Dwiansyah, author
2016
UI - Skripsi (Membership)
Kartika Aulia Widyatami, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2016
UI - Skripsi (Membership)
Nabila Maharani, author
2017
UI - Skripsi (Membership)