Pradana P, Ach. Ferdiansyah, et al. “The Effectiveness Test of Ultrasonic Extraction Microwave Distillation (USE-MD) Method in Capsaicin Extraction”. IPTEK The Journal of Engineering, vol. 3, no. 1, Sept. 2025, pp. 6-10, doi:10.12962/joe.v3i1.2265.