C.P. Kukreja
McGraw-Hill, 1978
Buku Teks
Galindo, Michelle, author
Braun, 2012
Buku Referensi
Rothe, Camilla, author
Elsevier; Saunders, 2015
Buku Teks
Nick Beeching, Geoff Gill.
Wiley-Blackwell, 2014
Buku Teks
Senior, Michael, author
Longman, 1979
Buku Teks