Mallick, S. K.
Oxford & IBH Publishing , 1985
Buku Teks
Ferguson, Phil Moss, 1899-, author
John Wiley & Sons, 1988
Buku Teks
Raju, N. Krishna, author
CBS Publishers & Distributors, 1986
Buku Teks
Wight, James K., author
Pearson, 2016
Buku Teks
MacGregor, James G., author
Prentice-Hall, 2005
Buku Teks