Umar Farooq, Muhammad Hanif Akhtar,Muhammad Ramzan Sheikh,Asifa Tufail. 2021. “SOCIO-ECONOMIC FACTORS OF CHILDHOOD IMMUNIZATION IN PAKISTAN”. Harf-O-Sukhan 5 (2), 8-26. https://www.harf-o-sukhan.com/index.php/Harf-o-sukhan/article/view/72.