Handelman, Howard, author
Pearson/Prentice Hall, 2006
Buku Teks
edited by P. Ebow Bondzi-Simpson
Praeger, 1992
Buku Teks
Afsghar, Haleh, author
Longman, 1991
Buku Teks
Midgley, James, author
Sage, 2014
Buku Teks
Taba, Hilda, author
Harcourt Brece & World, 1962
Buku Teks