Astuti, E., Sugihartini, N., Zainab, Z., & Novitasari, P. R. . (2023). Community Service Based on A Training Method for Making Liquid Hand Sanitizers to Prevent The Spread of COVID-19 in Tegalsari Kulon Progo. SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi Dan Aplikasi), 4(1). https://doi.org/10.12928/spekta.v4i1.7821