CASTRO-GARZÓN, HERNANDO, RODRÍGUEZ MIRANDA, JUAN PABLO, RIVAS TRUJILLO, EDWIN. Determination of contamination in the transept, la Esperanza - Casibare, of the lower reaches of the Buquepipe in the city of Villavicencio Meta Colombia. International Journal of Advanced Science and Technology, v. 29, n. 7, p. 11850 - 11858, 1 Jul. 2020.