To-on, P., R. Taengphukieo, A. Lawong, and M. Teerakun. “Design and Development of an Automatic Soil Packing Machine for Enhanced Production Efficiency Using Quality Function Deployment Technique”. Journal of Engineering and Industrial Technology, Kalasin University, vol. 3, no. 1, Feb. 2025, pp. 42-57, doi:10.14456/jeit.2025.4.