James Ribeiro de Azevedo, Célia Regina Paes Bueno and Gener Tadeu Pereira (2021) “Study on Spatial Variability of Soil Properties in an Agrarian Reform Settlement in Chapadinha, Brazil”, Cutting-edge Research in Agricultural Sciences Vol. 9, pp. 148–160. doi: 10.9734/bpi/cras/v9/8683D.