Sternberg, Robert J.
Wadsworth and Cengage Learning, 2012
Buku Teks SO
Ashcraft, Mark H.
Pearson, 2014
Buku Teks SO
edited by Adam Shoemaker
University of Queensland, 1994
Buku Teks SO
edited by A.B. Shah
Manaktalas, 1965
Buku Teks SO
compiled by Clayton Joyce
Angus & Robertso, 1991
Buku Teks SO