ANDRADE, C.D.L.T.D. et al. (2013) “SIMULATED YIELD AND NET RETURN OF A MAIZE CROP FERTILIZED WITH DIFFERENT SOURCES AND RATES OF NITROGEN”, International Journal of Maize & Sorghum, 11(3), pp. 254–267. doi:10.18512/1980-6477/rbms.v11n3p254-267.