TONBUL, YALCIN, and HALIL HOSGOREN. “Catalytic Properties of Heteropoly Acid H3PW12O40 Supported on Turkish Bentonite”. Asian Journal of Chemistry 20, no. 4 (March 30, 2010): 2875–2881. Accessed November 29, 2024. https://asianpubs.org/index.php/ajchem/article/view/12657.