Chuong, Bui, Gilbert Villoutreix, and Nguyen Tri Phuong. “Effect of Recycling Process in Twin Screws Extruder HAAK on Structure and Crystallization Behavior of Polypropylene”. <i>Vietnam Journal of Chemistry</i> 47, no. 2 (August 23, 2014): 257. Accessed December 6, 2025. https://vjs.ac.vn/vjchem/article/view/4576.