Statistical Process Control: A Case-Study on Haleeb Foods Ltd., Lahore. Journal of Statistics, [S. l.], v. 12, 2005. DOI: 10.65463/jstat.2005.155. Disponível em: https://jstat.gcu.edu.pk/index.php/jstat/article/view/155. Acesso em: 11 aug. 2026.