Júnior, A. S. de A., Noleto, D. H., Silva, M. E. da, Braga, D. L., & Bastos, E. A. (2012). Angström-Prescott equation coefficients to Parnaíba, Piaui State, Brazil. Comunicata Scientiae, 3(1), 50–54. https://doi.org/10.14295/cs.v3i1.103