KOUL, Anjni. EXPERIENCE OF TEACHING ABOUT THE COMPONENTS OF THE AIR AT THE ELEMENTARY LEVEL. SCHOOL SCIENCE, [S. l.], v. 52, n. 2, p. p.23–27, 2014. Disponível em: http://ejournals.ncert.gov.in/index.php/SS/article/view/2167. Acesso em: 19 aug. 2025.