JOSEPH ODUNAYO, Braimah,. Performance Assessment of Mean Methods in Estimating Process Capability for Non-Normal Process for Weibull Family Life Distribution. Global Journal of Science Frontier Research, [S.l.], dec. 2019. ISSN 2249-4626. Available at: <https://journalofscience.org/index.php/GJSFR/article/view/2569>. Date accessed: 15 aug. 2020.