Santos, G. C. and Barden, J. E. (2023) “The Contribution of an Association of Collectors of Recyclable Materials to the Improvement of the Living Conditions of its Members”, Fronteiras - Journal of Social, Technological and Environmental Science, 12(3), pp. 127–140. doi: 10.21664/2238-8869.2023v12i3.p127-140.