Yin, Ping
ianxia Wenhua Commonwelth, 1995
Buku Teks
Fakultas Ilmu Keperawatan Universitas Indonesia, 2012
UI - Skripsi (Open)
Campbell, Donald T.
Rand Mc Nally College Publisher, 1966
Buku Teks
Juliet Sprake
Sense, 2012
eBooks
McCarthy, Bernice
American Society for Training & Development, 2007
eBooks