Stewart, James, 1941-, author
Salemba Teknika, 2009
Buku Teks
Stewart, James, 1941-, author
Salemba Teknika, 2011
Buku Teks
Kay, David A., author
Neb Cliffs Notes, 1994
Buku Teks
Rosenberg, Jerome L., author
McGraw-Hill, 1980
Buku Teks
compiled and edited by William L. Langer
Houghton Mifflin, 1968
Buku Referensi