Kiki Puspitasary, Meliana Novitasari, Rina Tri Handayani, Siti Maesaroh, Lilik Hanifah, Ani Nur Fauziah. Systematic Review: Improving Body Immunity through Consumption of Vitamins in Facing COVID-19. jqph [Internet]. 2022 Nov. 17 [cited 2025 Sep. 18];6(1):121-9. Available from: https://www.jqph.org/index.php/JQPH/article/view/413