Sirirak, W., N. Jaikhom, A. Pinchaimoon, T. Klongdee, and S. Sirisean. “ECRS technique using for process improvement of honey filling”. Journal of Manufacturing & Management Technology, vol. 1, no. 2, Dec. 2022, pp. 11-20, https://ph01.tci-thaijo.org/index.php/jMMT/article/view/249415.