What is the cost of implementing DHIS2?

resources
implementation

#1

I am looking for any resources on what the cost of DHIS2 implementation is. It could be a blog post, a published article or a reflection on how much it cost to set up the software.

I have read this:

http://healthdevinfo.blogspot.com/2013/06/the-cost-of-free-software.html (generally about free software)
and this

Also, any link to studies on DHIS2 with a cost component are welcome

Thanks!