Anggraini, Amelia Putri, Mitsalina Fildzah Arifah, Fina Ummu Sayyidah Yahya, and Devika Nurhasanah. 2025. “The Effect of Extraction Time Variation on Caffeine Content in Robusta Coffee Extract Using Ultrasound-Assisted Extraction Method”. Journal of Food and Pharmaceutical Sciences 13 (1), 76-86. https://doi.org/10.22146/jfps.18750.