Gujarati, Damodar N., author
McGraw-Hill, 2009
Buku Teks
Polock, D.S.G., author
John Wiley & Sons, 1979
Buku Teks
Maddala, G.S., author
Macmillan, 1989
Buku Teks
Gujarati, Damodar N., author
McGraw-Hill , 1988
Buku Teks
Stewart, Jon, author
Hutchinson, 1976
Buku Teks