Johnston, J.
McGraw-Hill , 1972
Buku Teks
Christ, Carl F., author
Wiley Eastern Private, 1996
Buku Teks
Brown, T. Merritt, author
Macmillan, 1970
Buku Teks
Pindyck, Robert S., author
McGraw-Hill, 1991
Buku Teks
Chow, Gregory C., author
John Wiley & Sons, 1981
Buku Teks