RAIHEN, Md Nurul; AKTER, Sultana; TABASSUM, Fariha; JAHAN, Farjana; SARDAR, Md Nazmul. A Statistical Analysis of Positive Excess Mortality at Covid-19 in 2020-2021. Journal of Mathematics and Statistics Studies, [S. l.], v. 4, n. 3, p. 07–17, 2023. DOI: 10.32996/jmss.2023.4.3.2. Disponível em: https://al-kindipublishers.org/index.php/jmss/article/view/5645. Acesso em: 30 nov. 2025.