Santoso UT, Nurmasari R, Umaningrum D. Tosylation of N-Phthaloyl-Chitosan without Drying of Solvents and Purging of Water Vapor. icbb [Internet]. 2011 Oct. 31 [cited 2026 Jul. 18];1(1):A107-A111. Available from: https://www.sunankalijaga.org/prosiding/index.php/icbb/article/view/160