Ravichandran J, Santhosh D. Process Capability Indices for Processes when the Underlying Data are Interval-Valued. ijsmr [Internet]. 2024 Oct. 9 [cited 2025 Jul. 27];13:210-8. Available from: http://mail.lifescienceglobal.com/pms/index.php/ijsmr/article/view/9831