Olimpio, Silvia Cristina Maia, et al. “Patterns of Production and Sustainability of Cattle Ranching in the State of Pará - Brazilian Amazon”. Semina: Ciências Agrárias, vol. 43, no. 2, Feb. 2022, pp. 541-60, doi:10.5433/1679-0359.2022v43n2p541.