Autorengruppe, Prager
Scriptor, 1973
Buku Teks
Cambridge University Press, 2006
eBooks
Hudson, Richard
Basic Blackwell , 1984
Buku Teks
Peterson, Philip L.
Mouton, 1973
Buku Teks
Silalahi, Ivo Novita S BR, author
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2018
UI - Tesis (Membership)