Blommaert, Jan, author
Cambridge University Press, 2007
Buku Teks
Cambridge University Press, 1982
eBooks
Collins, James, author
Cambridge University Press , 2005
Buku Teks
Tarida Hapsari, author
Fakultas Hukum Universitas Indonesia, 2023
UI - Tesis (Membership)
Malmstrom, Jean, author
Hayden Book Company, 1965
Buku Teks