Nguyen, T.D. 2026. Influence of Butt Fusion Welding Parameters on Tensile Strength of Unplasticized Polyvinyl Chloride Pipe Welding Joints. Engineering and Technology For Sustainable Development. 36, 2 (Mar. 2026), 054–061. DOI:https://doi.org/10.51316/jst.189.etsd.2026.36.2.7.