Luu, Thi, and Vinh Pham. “Ultrasound-Accelerated Arylthiomethylation of Indole via Multicomponent Reaction in Water Catalyzed by Acetic Acid”. Science & Technology Development Journal: Natural Sciences 1, no. T1 (March 31, 2017): 80-85. Accessed May 19, 2024. http://stdjns.scienceandtechnology.com.vn/index.php/stdjns/article/view/442.