Athikulrat, K. and Yindeemorh, S. (2020) “Application of Six Sigma to Reduce Waste from Wire Spokes Production Process: A Case Study on Motorcycle Parts Factory”, Science and Engineering Connect. Bangkok, Thailand, 43(3), pp. 277–296. available at: https://ph04.tci-thaijo.org/index.php/SEC/article/view/10664 (accessed: 20 July 2025).