Bynagle, Hans E.
Philosophy : a guide to the reference literature / Hans E. Bynagle
Libraries Unlimited, 1986
Buku Referensi
Lauterbach, Richard E.
These are the Russians / Richard E. Lauterbach
Harper & Brother Publishers, 1945
Buku Teks
Torrey, Theodore W.
Morphogenesis of the vertebrates
John Wiley & Sons, 1979
Buku Teks
Bateson, FW
Guide to English literature
Longmans , 1965
Buku Teks
The JAL guide to the profesional literature
Artikel Jurnal