Al Hakim RR. Pencegahan Penularan Covid-19 Berbasis Aplikasi Android Sebagai Implementasi Kegiatan KKN Tematik Covid-19 di Sokanegara Purwokerto Banyumas. ceej [Internet]. 2020Aug.9 [cited 2025Jul.5];2(1):7-13. Available from: https://www.yrpipku.com/journal/index.php/ceej/article/view/125