Nguyen, Hai, and Phuong Tran. 2016. “Friedel-Crafts Acetylation of Indole, 5-Methoxyindole and 5-Chloroindole Using Copper Triflate under Microwave Irradiation”. Science and Technology Development Journal 19 (4), 177-84. https://doi.org/https://doi.org/10.32508/stdj.v19i4.621.