Suharti. “Nutrition In Improving Body Immunity As an Effort Protection of COVID-19 For Teachers of SMP Negeri 1 Perak Jombang”. GANDRUNG: Jurnal Pengabdian Kepada Masyarakat 2, no. 2 (July 19, 2021): 192-197. Accessed November 22, 2024. https://ejournal.unibabwi.ac.id/index.php/gandrung/article/view/1175.