BASSEY, Nse Okon; MOFFAT, Victoria Ekpedeme; JAMES, Innocent I. Proportion Defective Chart to monitor ARSAN Sachet Water Production Process. International Journal of Natural and Practical Sciences (IJNPS), [S. l.], v. 7, n. 2, p. 44–50, 2025. Disponível em: https://icidr.org.ng/index.php/Ijnps/article/view/1774. Acesso em: 16 dec. 2025.