Prediction of Monthly Fluoride Content in Tigris River using SARIMA Model in R Software. Journal of Engineering, [S. l.], v. 22, n. 8, p. 75–85, 2016. DOI: 10.31026/j.eng.2016.08.05. Disponível em: https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/156. Acesso em: 5 aug. 2025.