[publisher not identified], [date of publication not identified]
Buku Teks
Doyglas J. Davies, author
Berg, 2002
Buku Teks
Rahner, Karl, author
The Crossroad Publishing Company, 1981
Buku Referensi
Descrates, Rene
J.M. Dent & Sons , 1949
Buku Teks
Ann Arbor, Michigan : University Microfilms International, 1977-1978-1979-1980-1981-1982-1983-1987-1986
Majalah, Jurnal, Buletin