Agustina S, Ambarwati K, Sangadji I, Ariyanti I. Online Immunization Class during the Covid–19 Pandemic. Indones. Berdaya. [Internet]. 2023 Jan. 16 [cited 2026 Jun. 27];4(2):561-6. Available from: https://ukinstitute.org/journals/ib/article/view/4217