@book{23840,
	author = {Taipe Haqquehua, Eugenio and Incarroca Churata, Freddy Efraín and Córdova Tocre, Agripino},
	title = {Problemas  PAEV : },
	publisher = { Eugenio Taipe Haqquehua,},
	year = {2019.},
	address = {Cusco :}
}