Newman, Barbara M., author
Wadsworth and Cengage Learning, 2012
Buku Teks
Santrock, John W., author
McGrawHill International, 2014
Buku Teks
Newman, Barbara M., author
Cole Publishing, 1991
Buku Teks
Dacey, Austin, 1972-, author
Brown & Benchmark Publishers , 1994
Buku Teks
McGraw-Hill, 2013
Buku Teks