Sinthusai, Likhasit, Wimonrat Trakarnpruk, and Roman Strauss. “Ziegler-Natta Catalyst With High Activity and Good Hydrogen Response”. Journal of Metals, Materials and Minerals 19, no. 2 (April 15, 2017). Accessed April 26, 2024. https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/232.