F. F. Putti, B. C. GÓES, V. PALÁCIO, B. R. DE GODOY, and D. D. L. SARTORI, “Multivariate Analysis of Brazilian Agricultural Production”, Int J Innov Educ Res, vol. 5, no. 12, pp. 95–100, Dec. 2017, doi: 10.31686/ijier.vol5.iss12.872.