By Stata Release 10 - Quick Reference and Index Edition: reprint
By Alan C. Acock (Oregon State University, Corvallis, USA)
By Hardin, James W., Hilbe, Joseph M.
By Mitchell, Michael N.
By Baum, Christopher F.
By Various
By Rabe-Hesketh, Sophia, Skrondal, Anders
By Stata Press
By Gould, WILLIAM