KUMAR, David D. CLASSROOM VARIABLES AND STUDENT-ATTITUDE TOWARDS SCIENCE: learning by experience. SCHOOL SCIENCE, [S. l.], v. 51, n. 1, p. p.39–45, 2013. Disponível em: http://ejournals.ncert.gov.in/index.php/SS/article/view/1890. Acesso em: 23 aug. 2025.