Abe, Kobo
University of Tokyo Press, 1975
Buku Teks SO
Kalat, James W.
Langara College, 2016
Buku Teks SO
Park, Seon-Yeong
1n1books, 2007
Buku Teks
Carnes, Barbara
American Society for Training & Development, 2012
eBooks
Rohde, Peter Preisler, 1902-1978
Press Departement of the Ministry for Foreign Affairs, 1955?
Buku Teks SO