Umardiyah, Fitri, Abdur Rohman, and Eliza Verdianingsih. “Effect of Online Learning On Mathematical Critical Thinking Skills of Grade VIII Junior High School Students”. APPLICATION: Applied science in Learning Research 2, no. 1 (June 30, 2022): 56–61. Accessed July 4, 2024. https://ejournal.unwaha.ac.id/index.php/application/article/view/2063.