A. Apriana, D. Setyawati, H. Heryati, Y. Yuliarni, and R. Novianti, “Dissemination of Efforts to Prevent the Spread of Covid-19 through the Use of Hand Sanitizer in Primary School 136 Palembang”., CERS, vol. 3, no. 2, pp. 95–100, Mar. 2023.