Alexander, R. McNeill
The chordates
VikasHouse, 1977
 Buku Teks
Nieuwkoop, Pieter D.
Primordial germ cells in the chordates: embryogenesis and phylogenesis / Pieter D. Nieuwkoop, Lien A. Sutasurya
Cambridge University Press, 1979
 Buku Teks
Weichert, Charles K.
Elements of chordate anatomy
McGraw-Hill, 1959
 Buku Teks
Weichert, Charles K.
Elements of chordate anatomy
McGraw-Hill, 1953
 Buku Teks
Weichert, Charles K.
Elements of chordate anatomy/ Charles K. weichert, William Presch
McGraw-Hill, 1984
 Buku Teks