Souza, Carla Cássia Oliveira, et al. “Qualitative Evaluation of the Basic Sanitation System With Fuzzy Logic in the Colonia Antônio Aleixo and Puraquequara Neighborhood in Manaus-AM, Brazil”. International Journal of Advanced Engineering Research and Science, vol. 6, no. 5, Oct. 2019, https://journal-repository.com/index.php/ijaers/article/view/842.