Deutsch, Kenneth L., author
Thomson, 2009
Buku Teks
McClelland, J.S.
Routledge , 1998
Buku Teks
Deutsch, Kenneth, author
Wadsworth and Cengage Learning, 2009
Buku Teks
Houghton, David Patrick, author
Routledge, 2015
Buku Teks
Parekh, Bhikhu, author
Kanisius, 2018
Buku Teks