Adhi Indrawan, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1981
UI - Skripsi (Membership)
Hermanson, Roger H., author
BPI Irwin, 1989
Buku Teks
Cambridge University Press, 2009
Multimedia
Cambridge University Press, 2009
Multimedia
edited by James E. Redden
Department of Linguistics Southern Illinois University, 1977/1978/1979
Buku Teks