A. V. de A. Motomiya, J. P. Molin, W. R. Motomiya, and F. H. R. Baio, “MAPPING OF THE NORMALIZED DIFFERENCE VEGETATION INDEX IN COTTON FIELD”, Pesq. Agropec. Trop., vol. 42, no. 1, pp. 112–118, Mar. 2012, doi: 10.5216/pat.v1i1.14251.