Shukla, R. C. N.
McGraw-Hill , 1987
Buku Teks
A. Abbas Salim, author
RajaGrafindo Persada, 1995
Buku Teks
A. Abbas Salim, author
RajaGrafindo Persada, 1993
Buku Teks
Williams, Numan A., author
South Western , 1984
Buku Teks
Vaughan, Emmett J., author
John Wiley & Sons, 1992
Buku Teks