Go to this site and register a FREE course on multi-modelling ! All materials are downloadable. See guides to get MLwin for members of UK universities. Go through modules 1-3 to get basics of statistics. Look at the full list of books for multi-modelling.
Note that multi modelling can be done with many packages, including Stata!
http://www.bristol.ac.uk/cmm/learning/course.html#pay
http://www.bristol.ac.uk/cmm/software/mlwin/ordering/ac-uk.html
In order to deal with missing data (2 -level missing data), go to this website, the package is freely available:
http://www.bristol.ac.uk/cmm/software/realcom/imputation.html
Note that multi modelling can be done with many packages, including Stata!
http://www.bristol.ac.uk/cmm/learning/course.html#pay
http://www.bristol.ac.uk/cmm/software/mlwin/ordering/ac-uk.html
In order to deal with missing data (2 -level missing data), go to this website, the package is freely available:
http://www.bristol.ac.uk/cmm/software/realcom/imputation.html