A Study to develop and evaluate the Effectiveness of an InformationBooklet in terms of the Knowledge and Attitude of the parents regarding Management of Mentally Challenged Children aged 3-12 years in Selected Centres /Schools of Delhi. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 1, p. 1905–1911, 2022. Disponível em: https://ijfans.org/index.php/Journal/article/view/4889. Acesso em: 17 jul. 2026.