Hai, Nguyen Truong, and Tran Hoang Phuong. 2019. “A Green Method for the Acylation of Secondary Alcohols With [CholineCl][ZnCl2]3-Catalyzed by Ultrasonic Method”. Science & Technology Development Journal: Natural Sciences 1 (6), 169-76. https://doi.org/https://doi.org/10.32508/stdjns.v1i6.684.