CP08 -

Phong Nguyen Nhu.

Linguistic Control Chart - The pLCC model.

The 2007 International Conference on Engineering  Research. December 20-22, 2007.

HCMC University of Technology.

https://www.researchgate.net/publication/374783615_Linguistic_Control_Charts_-The_pLCC_Model.

https://youtu.be/gtukCyQIroY.