Kittidecha, C., A. Chaiklang, S. Saramath, P. Narapinij, J. Phimoolchat, W. Hwanseang, S. Chaowakarnkool, W. Panyarach, R. Sanlad, and K. Lamkam. “Productivity improvement of material handling using Karakuri Kaizen hand truck: A case study of Phuwiangwari community enterprise”. RMUTSB ACADEMIC JOURNAL, vol. 12, no. 1, June 2024, pp. 80-92, https://li01.tci-thaijo.org/index.php/rmutsb-sci/article/view/261404.