Pham, Loc, and Thach Le. “USING MICROWAVE-SOXHLET EXTRACTOR TO EXTRACT SOME NATURAL PRODUCTS”. VNUHCM Journal of Science and Technology Development 12, no. 7 (April 15, 2009): 35-42. Accessed August 19, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/2264.