Kail, Robert V., author
South-Western , 2015
Buku Teks
Santrock, John W., author
McGraw-Hill, 2006
Buku Teks
Santrock, John W., author
McGraw-Hill, 2006
Buku Teks
Boyd, Denise, author
Pearson , 2006
Buku Teks
Santrock, John W., author
McGraw-Hill, 2002
Buku Teks