Febriana, I. D., H. S. Kusuma, S. Gala, and M. Mahfud. “The Effect of Temperature on Extraction of Swietenia Mahagoni by Ultrasound–assisted Extraction (UAE) Method”. ASEAN Journal of Chemical Engineering, Vol. 16, no. 1, June 2016, pp. 44-49, https://dev.journal.ugm.ac.id/v3/AJChE/article/view/8907.