O`Brien, James J.
McGraw-Hill, 1969
Buku Referensi
edited by John F. Muth and Gerald L. Thompson, with collaboration of Peter R. Winters
Prentice-Hall, 1963
Buku Teks
Hongkong Polytechnic International
Hongkong Polytechnic International, 2011
Buku Referensi
Deshpande, J.V.
Tata McGraw-Hill, 1994
Buku Teks
Hinze, Jimmie W.
Pearson - Prentice Hall, 2008
Buku Teks