Jakhotiya, G.P., author
Tata McGraw-Hill, 1989
Buku Teks
Harahap, Sofyan Syafri, author
RajaGrafindo Persada, 1996
Buku Teks
Jones, Reginald L.
Taraporevala, 1966
Buku Teks
Banks, Alan, author
McGraw-Hill, 2008
Buku Teks
Wixon, Rufus
Alexander Hamilton Institute , 1961
Buku Teks