MITTAL, Priyanka. Development of Self-Learning Instructional Material and its Effecto on Academic Achievement in Mathematics of Class Eight Students. Educational Trend (A Journal of RIE, Ajmer - NCERT), [S. l.], v. 3, n. 1, p. 147–164, 2025. Disponível em: http://14.139.250.109:8090/index.php/ET/article/view/3706. Acesso em: 28 apr. 2025.