Babcock, Tim G., author
Gadjah Mada University Press, 1989
Buku Teks
Thomas F. King, editor
Wiley Blackwell, 2011
Buku Teks
Mulder, Niels, author
Kanisius, 2005
Buku Teks
Ariel Heryanto
2005
Artikel Jurnal
Fadjar I. Thufail, author
2004
Artikel Jurnal