KALPANA MASKI. A Comparative Study Of Learning Gaps In The Cognitive Development Of Learners At The Primary Level Based On NAS 2017 And 2021 In Chhattisgarh. Educational Administration: Theory and Practice, [S. l.], v. 29, n. 3, p. 1484–1494, 2023. DOI: 10.53555/kuey.v29i3.9892. Disponível em: https://www.kuey.net/index.php/kuey/article/view/9892. Acesso em: 17 sep. 2025.