R.M. Moerdowo, author
Yogyakarta: Kanisius, 1973,
Buku Referensi
Gennep, Arnold Van
The University of Chicago Press, 1975
Buku Teks
Kerrigan, Michael
Elex Media Komputindo, 2017
Buku Teks
William Clowes & Sons,
Buku Teks
E.J. Brill, 1928
Buku Referensi