de Freitas Lopes, Gisele, et al. “Application of the Nonlinear Autoregressive Model With Exogenous Inputs for River Level Forecast in the Amazon”. International Journal for Innovation Education and Research, vol. 10, no. 3, Mar. 2022, pp. 304-23, https://doi.org/10.31686/ijier.vol10.iss3.3696.