V. Ananda, F. A. Muchti, and R. Widyatama, “Providing educational videos and posters for COVID-19 self-isolating patients at home in the telemedicine program of the National Agency for Disaster Countermeasure (BNPB) Special Region of Yogyakarta (DIY)”, BKM-PHCM, vol. 37, no. 11 Suppl., Nov. 2021.