Susdarwono, Endro Tri. “Synbiotic Structured Education (Probiotics and Prebiotics) in Order to Increase the community’s Resistance to the Spread of Covid-19”. Kreativasi : Journal of Community Empowerment 1, no. 2 (November 30, 2022). Accessed April 11, 2025. https://ejournal.unib.ac.id/kreativasi/article/view/23815.