“A MIXED-METHODS INVESTIGATION INTO BARRIERS TO ROUTINE IMMUNIZATION IN THE PERI-URBAN SLUMS OF BAHAWALPUR, PAKISTAN: A STUDY FROM LINCOLN UNIVERSITY COLLEGE MALAYSIA”. The Research of Medical Science Review, vol. 3, no. 7, July 2025, pp. 692-9, http://www.thermsr.com/index.php/Journal/article/view/1528.