Chawong, Kanungnit, Boonpradab Daengpradab, and Panarat Rattanaphanee. “Aluminum Alginate As a Solid Catalyst for Esterification of Lactic Acid With 1-Butanol”. Engineering and Applied Science Research 43 (November 2, 2016): 236–238. Accessed May 17, 2024. https://ph01.tci-thaijo.org/index.php/easr/article/view/70199.