Christ, Carl F.
Wiley Eastern Private, 1996
Buku Teks SO
Chow, Gregory C.
John Wiley & Sons, 1981
Buku Teks SO
Brown, T. Merritt
Macmillan, 1970
Buku Teks SO
Pindyck, Robert S.
McGraw-Hill, 1991
Buku Teks
Gujarati, Damodar N.
McGraw-Hill , 1988
Buku Teks SO