Dear Edson Muchemwa,
There are some very good on line resources on supply chain management in addition to the USAID Global eLearning Centre course mentioned by another respondent.
You will find a fairly comprehensive set of resources on the following 2 WHO MAKER web pages.
http://www.who.int/management/resources/procurement/en/index.html
http://www.who.int/management/resources/procurement/en/index1.html
John Hopkins has a self learning package on Problem Solving and Measurement Approaches for Immunization Programmes. This can be found at:
http://ocw.jhsph.edu/courses/immunizationPrograms/schedule.cfm
Regards,
Laura
Laura Hawken
http://www.who.int/management
mailto:hawkenl@who.int