Manda, Tyithania, 		Anjaswarni, Tri, 		Wiyono, Joko, AND 		Bahari, Kissa.
" The Impact of Online Learning During The Covid 19 Pandemic on Mental Changes of Adolescents in Junior High School 1 Blitar" <em>Jurnal Pendidikan Kesehatan</em> [Online], Volume 13 Number 1 (22 April 2024)