Frese, H.H., author
E.J. Brill, 1960
Buku Teks
Aldine Publishing Company, 1964
Buku Teks
Khusnul Hatimah, author
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2014
UI - Tesis (Membership)
Woo, Kyu Sung, author
Rockport Publishers, 1999
Buku Teks
Edwards, Edward, author
Thoemmes Press, 1996
Buku Referensi