Downer, Alan, author
University of Minnesota Press, 1961
Buku Teks
edited by Alan S. Downer
University of Chicago Press, 1965
Buku Teks
Wisnu Surya Pratama, author
Universitas Indonesia, 2002
UI - Skripsi (Membership)
Hilmi, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2004
UI - Tesis (Membership)
Gagey, Edmond M., author
Columbia University Press, 1948
Buku Teks