Luyen, L. H., Hien, D. T. T. and Tu, V. C. (2026) “Optimization of the ultrasonic-assisted extraction of the total methoxyflavones content from black ginger <i>Kaempferia parviflora</i> rhizomes”, <i>Vietnam Journal of Science and Technology</i>. Hanoi, VN. doi: 10.15625/2525-2518/22178.