Loughran, John
Sense, 2012
eBooks
Carelse, Xavier F.
John Wiley & Sons, 1983
Buku Teks
Leiden University
Leiden University, 2008
Buku Teks
Wisconsin : University of Wirconsin Press
Majalah, Jurnal, Buletin
Morris, Henry M., author
Creation-Science Research Center, 1971
Buku Referensi