Santrock, John W., author
Mc-Graw-Hill, 2002
Buku Teks
Santrock, John W., author
McGraw-Hill, 2012
Buku Teks
Santrock, John W., author
McGrawHill International, 2014
Buku Teks
Newman, Barbara M., author
Wadsworth and Cengage Learning, 2012
Buku Teks
Feldman, Robert S., author
Pearson Education, 2014
Buku Teks