A. P. García Rondón, J. R. Muñoz Gil, and G. . Marín Espinoza, “Concentrations of heavy metals in the blood of cocks (Gallus gallus domesticus) in Cumaná, Venezuela”, mv, no. 37, pp. 13–24, Jul. 2018, doi: 10.19052/mv.vol1.iss37.2.