Estupiñan Pedraza, L. A. (2014). The province in Boyacá: Territorial, historical and functional unit of planning in the management of endogenous regional development, 2004-2011. Universidad Pedagógica y Tecnológica de Colombia.
Lua i Stíl Chicago (17ú heag.)Estupiñan Pedraza, Lorena Andrea. The Province in Boyacá: Territorial, Historical and Functional Unit of Planning in the Management of Endogenous Regional Development, 2004-2011. Universidad Pedagógica y Tecnológica de Colombia, 2014.
Lua MLA (9ú heag.)Estupiñan Pedraza, Lorena Andrea. The Province in Boyacá: Territorial, Historical and Functional Unit of Planning in the Management of Endogenous Regional Development, 2004-2011. Universidad Pedagógica y Tecnológica de Colombia, 2014.