NCERT. National Conference On Mathematics Education at Regional Institute of Education (RIE), Bhubaneswar. Voices of Teachers and Teacher Educators, [S. l.], v. 5, n. 1, p. p. 88, 2016. Disponível em: http://ejournals.ncert.gov.in/index.php/vtte/article/view/486. Acesso em: 19 aug. 2025.