Wesley, Rhys
China Intercontinental Press, 2008
Buku Teks
Liu, Tong
China Intercontinental Press, 2010
Buku Teks
Washington, D.C. International Cooperation Administration, Office of Industrial Resources n.d.,
Buku Teks
Myers, Judith Gillespie
[American Society for Training and Development Press;, ], 2005
eBooks
International Cooperation Administration by Council for Economic and Industry Research
[Publisher not identified], 1956
Buku Teks