Hartini, Sri, Margareta Novian Cahyanti, and Alifia Dewi Safira. 2025. “Optimization of Spent Coffee Ground Extraction for Kombucha Production: Effect of Temperature on Fermentation Dynamics and Antioxidant Activity”. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 14 (5):1611-18. https://doi.org/10.23960/jtepl.v14i5.1611-1618.