Silaen, Michael, Erliza Noor, and Mulyorini Rahayuningsih. 2023. “Improvement of Purification Process of Stevia Extract by Combination of Microfiltration and Ultrafiltration”. Menara Perkebunan 91 (1). Bogor, Indonesia. https://doi.org/10.22302/iribb.jur.mp.v91i1.521.