Burckhardt, Jacob, author
Pantheon Books, 1955
Buku Teks
University of California Press, 1952
Buku Teks
Dewajani Razif, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1993
UI - Skripsi (Membership)
Mulder, Jan
Meulenhoff, 1991
Buku Teks
edited by Willy Sellekaerts
Macmillan, 1974
Buku Teks