HAREFA, A. R. Analisis Kesulitan Belajar Biologi Masa Pandemi Covid-19. Educativo: Jurnal Pendidikan, [S. l.], v. 1, n. 1, p. Page 181–189, 2022. DOI: 10.56248/educativo.v1i1.27. Disponível em: https://www.educativo.marospub.com/index.php/journal/article/view/27. Acesso em: 8 sep. 2024.