SANGAI, Sandhya. Multigrade Teaching Challenges and Opportunities. JOURNAL OF INDIAN EDUCATION, [S. l.], v. 44, n. 4, p. p. 27–33, 2019. Disponível em: http://ejournals.ncert.gov.in/index.php/jie/article/view/2557. Acesso em: 6 jul. 2025.