Ernawati, E., Handayani, T. P., Astari, R. Y., Ahmar, H. and Mauludiyah, I. (2022) “Communication, information & education online-based assisted booklets in COVID-19 prevention: Study on maternals”, International journal of health sciences, 6(S1), pp. 2957–2964. doi: 10.53730/ijhs.v6nS1.5096.