DR. NOREEN AYAZ; DR. MUHAMMAD SAEED KHAN; SYED GHAZANFER ABBAS*; ANWAR MAHJABEEN. Impact of Concept Based Activities (CBA) on Retention of Knowledge of Students in General Science at Elementary School Level. Policy Journal of Social Science Review, [S. l.], v. 2, n. 4, p. 205–215, 2024. DOI: 10.63075/pjssr.v2i4.37. Disponível em: https://policyjssr.com/index.php/PJSSR/article/view/37. Acesso em: 2 feb. 2026.