Tutors Socioeconomic profile and welfare assessment proposition in sand extraction traction mules in the Paraíba River: Pro-Carroceiros Extension Project - Federal University of Alagoas. RSD [Internet]. 2020 Sep. 1 [cited 2025 Dec. 14];9(9):e617997552. Available from: https://www.rsdjournal.org/rsd/article/view/7552