Raktoe, B.L.
John Wiley & Sons, 1981
Buku Teks
Cochran, William G.
John Wiley & Sons, 1959
Buku Teks
Atkinson, A.C.
Clarendon Press, 1992
Buku Teks
Liu, Helen, editor
Design Media Publishing, ©2010., 2012
Buku Referensi
Pathak, Haresh
The Pepin Press, 1999
Buku Referensi