Lawrence, D.H., foreword
London Everyman's Library 1993,
Buku Referensi
Kooistra, J., author
Wolters, 1948
Buku Teks
Furkanita, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1987
UI - Skripsi (Membership)
Murdoch, Anna, author
Morrow, 1988
Buku Teks
Traven, B., author
Hill and Wang, 1966
Buku Teks