Knoke, David, author
Sage, 1980
Buku Teks
Dobson, Annette J., author
Chapman & Hall, 1993
Buku Teks
Dobson, Annette J., author
CRC Press, Taylor & Francis Group, 2008
Buku Teks
Verbeke, Geert, author
Springer, 2000
Buku Teks
Arnold, Steven F., author
John Wiley & Sons, 1981
Buku Teks