Ibrar Hussain, and Imran Ahmad Sajid. “An Analysis of Parental Refusing to Child Immunization: A Study of Khyber Pakhtunkhwa, Pakistan”. INTERNATIONAL JOURNAL OF HUMAN AND SOCIETY, Vol. 4, no. 1, Feb. 2024, pp. 573-8, http://ijhs.com.pk/index.php/IJHS/article/view/420.