Morris, Henry M.
Creation-Science Research Center, 1971
Buku Referensi
Mudd, Norma
Hodder & Stoughton Educational , 1998
Buku Teks
Editor by John Sharp
Learning Matters, 2004
Buku Teks
edited by Rao V. Kolluru
McGraw-Hill, 1994
Buku Teks SO
by Christoph Stocker, Ingrid Davids; Karl Heinz Bonath, Wolfgang Hieber
Wiley Eastern, 1979
Buku Teks SO