Academic Press, 1974
Buku Teks
Wooldridge, Jeffrey M., 1960-, author
South-Western College, 2000
Buku Teks
Gujarati, Damodar N., author
Salemba Empat, 2015
Buku Teks
Klein, Lawrence R., author
Prentice Hall of India, 1969
Buku Teks
Maddala, G.S., author
Cambridge University Press, 1983
Buku Teks