NIHAD SHAREEF KHALAF. Regional Exponential Observation and error. Tikrit Journal of Pure Science, [S. l.], v. 20, n. 4, p. 180–186, 2023. DOI: 10.25130/tjps.v20i4.1234. Disponível em: https://tjpsj.org/index.php/tjps/article/view/1234. Acesso em: 17 jun. 2025.