Jakhotiya, G.P.
Tata McGraw-Hill, 1989
Buku Teks
Thomas, William E.
South-Western Publishing, 1988
Buku Teks
Jones, Reginald L.
D.B. Taraporevala Sons, 1971
Buku Teks
Clark, John J.
Prentice-Hall, 1979
Buku Teks
Clark, John J.
Prentice-Hall, 1989
Buku Teks