Tjou En-Lai
Pustaka Bahasa Asing, 1956
Buku Teks
Fakultas Ilmu Keperawatan Universitas Indonesia, 2004
UI - Tugas Akhir
Smart, James R., author
Brooks/Cole Publishing, 1969
Buku Teks
American Society for Training and Development Research
American Society for Training & Development, 2013
eBooks
Neal, Bruno, author
American Society for Training & Development, 2012
eBooks