Artikel Jurnal
M. Riza Sihbudi, 1957-, author
Gema Insani Press, 1997
Buku Teks
M. Riza Sihbudi, 1957-, author
Gema Insani Press, 1997
Buku Teks
Henry, Clement M., 1937-, author
Cambridge University Press, 2010
Buku Teks
Blum, Howard
Pocket Books , 1998
Buku Teks