References

Required:
WHO (2001). Health Research Methodology: A Guide for Training in Research Methods. WHO Regional Office for the Western Pacific (2nd ed.). Retrievable from http://www.wpro.who.int/publications/pub_929061157X.htm).

Recommended:

1. Aviva Petrie & Caroline Sabin (2000). Medical Statistics at a Glance (1st ed.). Blackwell Publishers.

2. Beth Dawson et al (2004). Basic & Clinical Biostatistics (4th ed.). McGraw-Hill Medical.

3. Darren George & Paul Mallery (2004). SPSS for Windows Step by Step: A Simple Guide and Reference 12.0 update (5th ed.). Allyn & Bacon.