Daniels, John D.
Addison-Wesley, 1976
Buku Teks
Daniels, John D.
Addison-Wesley , 1986
Buku Teks
Daniels, John D.
PWS-Kent Publishing, 1993
Buku Teks
Hirst, Paul, author
Yayasan Obor Indonesia , 2001
Buku Teks
Hirst, Paul, author
Polity, 1999
Buku Teks