LAGOS LÓPEZ, Mayer Isnardo; CEPEDA ARIAS, Edisson Ramiro; ESPINOSA RAMÍREZ, Adriana Janneth; NEIRA SIMIJACA, Juan Alonso. Zisuma : Parque Nacional Natural El Cocuy, Cuenca Alta del Río Nevado. [s.l.] : Editorial UPTC,2020. Disponível em: https://omp34-uptc.desarrollo-ojs1.metadatos.org/index.php/editorial-uptc/catalog/book/141. Acesso em: 8 oct. 2026.