Tunio, Hanna Khair, Fyezah Jahan, Riaz Ahmed Bhutto, Riaz Ullah Riaz, Tehreen Siddique, and Aftab Ahmed. “Perceived Challenges and Their Influence on Performance Motivation Among Fieldworkers in Sindh’s Expanded Programme on Immunization”. Pakistan Journal of Public Health 16, no. 1 (March 28, 2026): 12–16. Accessed July 17, 2026. https://www.pjph.org/pjph/article/view/1150.