Amin, Muhammad, Muhammad Amanullah, and Atif Akbar. “Monitoring Yarn Count Quality Using Xbar-R and Xbar-S Control Charts: Control Chart to Monitor Yarn Count Quality”. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences 55, no. 1 (April 15, 2021): 97–107. Accessed December 23, 2024. https://ppaspk.org/index.php/PPAS-A/article/view/197.