Sternberg, Robert J.
Cognition
Wadsworth and Cengage Learning, 2012
 Buku Teks SO
Ashcraft, Mark H.
Cognition
Pearson, 2014
 Buku Teks SO
A handbook for the identification of cephalopod beaks
edited by Malcolm R. Clarke
Clarendon Press, 1986
 Buku Teks
A Handbook for the identification of cephalopod beaks
edited by Malcolm R. Clarke
Clarendon Press, 1986
 Buku Referensi
Norman, Donald A.
Explorations in cognition
W.H. Freeman, 1975
 Buku Teks SO