Routledge, 1996
Buku Teks
Haviland, William A., author
Rinehart and Winston, 1975
Buku Teks
Harris, Marvin, 1927-2001, author
Harper Collins , 1991
Buku Teks
Nanda, Serena
Wadsworth, 1994
Buku Teks
Lenkeit, Roberta Edwards, author
McGraw-Hill, 2012
Buku Teks