Susan K. Kovar ... [and others]
McGraw-Hill, 2012
Buku Teks
Dani Ronnie M, author
Hikmah, 2006
Buku Teks
Hughes, Arthur
Cambridge University Press, 1994
Buku Teks
Bennett, Albert B., author
McGraw-Hill , 2001
Buku Teks
edited by David Lusted
Routledge, 1991
Buku Referensi