Shoukri, M. M. <br/><br/>
Analysis of Correlated Data with SAS and R / 
Mohamed M. Shoukri , Mohammad A. Chaudhary. 
 - Third 
 - Boca Raton :  Chapman & Hall/CRC,  c2007. 
 - 295 p. :  ill. ;  25 cm. +  1 CD-ROM (4 3/4 in.)