Interaction design and the third world/BoP

Hey, I’m starting my masters project which concerns products for the Base of Pyramid/third world countries.

I am wondering if anyone knows any books or other literature regarding interaction design for this segment?There must be some guidelines or theories developed specifically for this segment?

Any suggestions?

(I’m using the word ‘interaction’ design here, but the product will most likely not have any electronics, however, the interaction is still the main part of my interest.)