Gross, Richard D.
Pustaka Pelajar , 2013
Buku Teks SO
Santrock, John W.
W.C. Brown Publisher, 1991
Buku Referensi
Gazzaniga, Michael S.
Norton & Company, 2003
Buku Teks SO
Passer, Michael W.
McGraw-Hill, 2009
Buku Teks
Cacioppo, John T.
Cengage Learning, 2013
Buku Teks