Gupta, R.; Kaur, M. .; Reddy, K. .; Jacqueline Andrade, R. . A Comparative Study to Assess the Knowledge Regarding Mild and Moderate Mental Retardation of Children Among Primary School Teachers in Selected Urban and Rural Schools, Jalandhar (Punjab) With a View to Develop an Information Booklet. International Journal Of Medical Science And Clinical Research Studies 2022, 2, 361-369.