1. UN-DESA. Sustainable development knowledge platform: sustainable development goals, ; 2016 [accessed 09.09.16].
2. UN-DESA. Sustainable development knowledge platform: sustainable development goal 7, ; 2016 [accessed 09.09.16].
3. UN. Energy access practitioner network, ; 2016 [accessed 15.10.16].
4. Global tracking framework. Washington, D.C.;Angelou,2013
5. WHO. Household air pollution and health. Fact sheets, ; 2016 [accessed 09.10.16].