Klein, Lawrence R., author
Prentice Hall of India, 1969
Buku Teks
Maddala, G.S., author
Macmillan, 1989
Buku Teks
Lahiri, Kajal, author
Wiley India, 2009
Buku Teks
Theil, Henri, author
Prentice-Hall, 1978
Buku Teks
Dedi Rosadi, author
Andi, 2011
Buku Teks