Huaman, Angie, and Jhonny Valverde Flores. 2017. “Contingent Economic Valuation of Hill Amancaes – Bella Durmiente to Promote Its Conservation, Independencia – Lima”. Journal of Energy &Amp; Environmental Sciences 1 (1):10-16. https://journals.cincader.org/index.php/eesj/article/view/29.