Bayu Kristianto, author
VDM Verlag Dr. Muller, 2009
Buku Teks
Schrieke, Bertram Johannes Otto, author
G. Kolff, 1929
Buku Teks
Kazin, Alfred, 1915-, author
Harcourt Brace Jovanovich, 1970
Buku Teks
Christesen, C.B., author
Angus and Robertson, 1968
Buku Teks
Artikel Jurnal