Davis, Con, author
Longman, 1991
Buku Teks
Artikel Jurnal
Mahda Sofa Syahdu, author
University of Indonesia, Faculty of Humanities, 2002
Artikel Jurnal
Vini Risma Khairani Tjakrawadhana, author
2015
UI - Skripsi (Membership)
Nieuwenhuys, Rob, author
Djambatan, 1979
Buku Teks