Deny Arnos Kwary, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2004
UI - Tesis Membership
Scobie, Janet I.
George Allen and Unwin, 1959
Buku Teks
Doff, Adrian, author
Cambridge University Press, 2011
Multimedia
Doff, Adrian, author
Cambridge University Press, 2011
Multimedia
Tomasowa, Francien Herlen, author
Universitas Brawijaya, 2005
Buku Teks