DALATU, Paul I.; IBRAHIM, Asabe. Buys Ballot Approach in Time Series Analysis of Typhoid Fever. Sigma&Mu: Journal of Mathematics, Statistics and Data Science, [S. l.], v. 1, n. 1, p. 9–15, 2023. Disponível em: https://journals.balaipublikasi.id/index.php/sigmamu/article/view/60. Acesso em: 7 jan. 2025.