Fikri, A., and Khairu Kamarudin. “Investigation on Effect Oo Abs Filament Extrusion Process Temperature for Fused Filament Fabrication (FFF) 3D Printing”. Progress in Engineering Application and Technology, vol. 3, no. 1, June 2022, pp. 703-11, https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/6442.