Alves, D. G., Pinto, M. F., Damasceno, A. P. A. B., Grah, V. de F. e Botrel, T. A. (2014) “COST ANALYSIS OF WATER PUMPING USING SOLAR ENERGY AND DIESEL IN DRIP IRRIGATION”, IRRIGA, 1(1), p. 125–133. doi: 10.15809/irriga.2014v1n1p125.