Henslin, James M., author
Erlangga, 2007
Buku Teks
Kendall, Diana, author
Thomson/Wadsworth, 2008
Buku Teks
Henslin, James M., author
Erlangga, 2007
Buku Teks
Berger, Peter L., author
Anchor Books, 1963
Buku Teks
Andersen, Margaret L., author
Thomson, Wadsworth, 2009
Buku Teks