Sumranhun, P., N. Saisuwan, S. Rungcharoen, B. Damrongwatthanayothin, S. Puinun, W. Ruamsup, and P. Virayasiri. “The Improving Productivity in Seasonal Product Manufacturing by Motion and Time Study and Jig Design”. Thai Industrial Engineering Network Journal, vol. 10, no. 1, June 2024, pp. 51-59, https://ph02.tci-thaijo.org/index.php/ienj/article/view/249249.