Pereira Justino, Sousa Silva, A. de Lira Freitas, Holanda Leite, and Leite da Silva. “Phytoosociological Survey of Caatinga Trail under Extensive Grazing in Patos-PB Municipality”. Advances and Trends in Agricultural Sciences Vol. 2, Oct. 2019, pp. 134-41, https://stm1.bookpi.org/index.php/atias-v2/article/view/460.