Ribeiro, A. A., M. Simeão, and A. R. B. Santos. 2015. “WATER CLIMATOLOGICAL BALANCE FOR MUNICIPALITIES OF PIRIPIRI AND SAO JOAO DO PIAUÍ, PIAUÍ, BRAZIL”. Brazilian Journal of Biosystems Engineering 9 (3). Tup:228-35. https://doi.org/10.18011/bioeng2015v9n3p228-235.