Ikawati, Y., Dewi, Y. L. R. and Adriani, R. B. (2017) “Biopsychosocial Factors Associated with Mental Retardation in Children Aged 6-17 Years in Tulungagung District, East Java”, Journal of Epidemiology and Public Health, 2(2), pp. 119–129. Available at: https://jepublichealth.com/index.php/jepublichealth/article/view/40 (Accessed: 3 May 2024).