Prasong, Wattanachai, Pitak Panawan, Manus Sriswat, Prayoon Surin, and Worrathon Tilokkarn. 2026. “FDM 3D Printing Filament Fabrication Methods by Reusing the PET Plastics Wastes”. Journal of Advanced Development in Engineering and Science 15 (44). Babgkok, Thailand:58-75. https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/4184.