Tran, T. K., Phung, L. H., le, H. N., Nguyen, T. T. H., Nghiem, X. S. dan Pham, V. T. (2012) “A Dynamic Model for Ultrasonic – assisted Extraction of Bio-active Compounds from Natural Products”, 12(2), hlm. 35-42. Tersedia pada: https://journal.ugm.ac.id/v3/AJChE/article/view/8130 (Diakses: 8Juni2025).