Moore, J.J.
Butterworth, 1981
Buku Teks
Rose, Elizabeth, author
Reinhold Publishing, 1958
Buku Referensi
Yates, Paul, author
CRC Press, 2007
Buku Teks
Sackheim, George I., author
Stipes , 1993
Buku Teks
Ewing, Galen W. (Galen Wood), author
McGraw-Hill, 1960
Buku Teks