Cahtiya, N.T. et al. 2022. The effectiveness of health promotion using social media on adolescent knowledge about Covid-19 in the work area of Health Center Batu Panjang, Rupat District, Bengkalis Regency . Science Midwifery. 10, 4 (Sep. 2022), 2900–2910. DOI:https://doi.org/10.35335/midwifery.v10i4.735.