Hannah, John
Longman Scientific & Technical, 1993
Buku Teks
Vijaywargiya, U.S.
S.S. Mubarak and Brothers , 1996
Buku Teks
Housner, George W.
D. Van Nostrand , 1959
Buku Teks
Mittal, R.
SSMB, 1996
Buku Teks
Smith, Charles Edward
John Wiley & Sons, 1982
Buku Teks