edited by Nancy Eisenberg
John Wiley & Sons, 1987
Buku Teks
Santrock, John W., author
Wm. C. Brown Publisher, 1984
Buku Teks
W.B. Saunders , 1983
Buku Teks
Carlson, Bruce M., author
Mosby Elsevier, 2009
Buku Teks
Bachkirova, Tatiana, author
McGraw-Hill, 2011
Buku Teks