Manda, T. A., Anjaswarni, T., Wiyono, J., & Bahari, K. (2024). The Impact of Online Learning During The Covid 19 Pandemic on Mental Changes of Adolescents in Junior High School 1 Blitar. Jurnal Pendidikan Kesehatan (e-Journal), 13(1), 1–11. https://doi.org/10.31290/jpk.v13i1.3946