Christensen, Ronald
Springer-Verlag, 1990
Buku Teks
editor, Garrett Fitzmaurice, Marie Davidian, Geert Verbeke, Geert Molenberghs
CRC Press , 2009
Buku Referensi
Dobson, Annette J.
CRC Press, Taylor & Francis Group, 2008
Buku Teks
Monahan, John F.
Chapman and Hall/CRC, 2008
Buku Teks
Jorgensen, Bent
Chapman and Hall, 1993
Buku Teks