Pan American Health Organization World health Organization. (1999). Setting up healthcare services information systems: A guide for requirement analysis, application specification, and procurement. World health Organization.

Pan American Health Organization World health Organization. Setting Up Healthcare Services Information Systems: A Guide for Requirement Analysis, Application Specification, and Procurement. Washinton, D.C: World health Organization, 1999.

Pan American Health Organization World health Organization. Setting Up Healthcare Services Information Systems: A Guide for Requirement Analysis, Application Specification, and Procurement. World health Organization, 1999.