INFLUENCE OF COIR FIBRES AND EXTRUSION PROCESS PARAMETERS ON RECYCLED PLA FILAMENT STRENGTH USING TAGUCHI-GRA METHOD. J. Teknol. [Internet]. 2026 Jun. 16 [cited 2026 Oct. 3];88(4):643-5. Available from: https://journals.utm.my/jurnalteknologi/article/view/23377