Smith, B.J.
Longman, 1971
Buku Teks SO
Cowan, James P.
Van Nostrand Reinhold, 1994
Buku Teks SO
Egan, David M.
McGraw-Hill, 1972
Buku Teks SO
edited by William J. Cavanaugh and Joseph A. Wilkes
John Wiley & Sons, 1999
Buku Teks SO
Cowan, James
McGraw-Hill, 2000
Buku Teks SO