Alan Armstrong & Associates, 1987
Buku Referensi
Book House Training Centre/Unesco
Book House Training Centre, 1991
Buku Referensi
editor-in-chief Xiao Dongfa
Foreign Languages Press, 2009
Buku Referensi
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2002
UI - Skripsi (Membership)
Ketut Masagung, author
Toko Gunung Agung , 2003
Buku Teks