Leipzig Insel 1970
Buku Teks
RB 769.952 M 180
Tokyo Kodansha International 1967
Buku Referensi
Wright, Andrew, 1937-
Melbourne : Cambridge University, 1986
Buku Teks
Villard, Ugo Monneret De
Roma La Libreria dello Stato 1950
Buku Referensi
Haqq, Fakir Abdul Bratakesawa
Edmonton Hurtig 1983
Buku Teks