Chaucer, Geoffrey, author
Everyman`s Library, 1992
Buku Teks
Mires, Charlene
University of Pennsylvania Press, 2002
Buku Teks
Cut Fatimah Purnamasari, author
Fakultas Teknik Universitas Indonesia, 1993
UI - Skripsi (Membership)
Universitas Indonesia, 1991
UI - Tugas Akhir
Packer, Richard
University of Queensland, 1972
Buku Teks