School Size Policies:

https://www.oecd-ilibrary.org/education/school-size-policies_5jxt472ddkjl-en

Country Roads: Education and Rural Life:

http://www.oecd.org/education/ceri/spotlight9-CountryRoads.pdf

Factores que afectan a la equidad educativa en escuelas rurales de México:

http://pensamientoeducativo.uc.cl/files/journals/2/articles/797/public/797-3021-1-PB.pdf