Stata base reference manual release 9.

Stata graphics reference manual release 9.

Stata data management reference manual release 9.

Stata quick reference and index release 9.

New developments in categorical data analysis for the social and behavioral sciences

Making sense of multivariate data analysis por Spicer, John

SPSS 14.0 brief guide.

Essentials of research methods a guide to social science research por Ruane, Janet M. 1954-

Table of contents

An intermediate guide to SPSS programming using syntax for data management por Boslaugh, Sarah

Statistical techniques in business & economics. por Lind, Douglas A