Akhtar, Sohail, Zafar Ahmed, Kesavan Sreekantan Nair, Yasir Hayat Mughal, y Asim Mehmood. «Out-of-Pocket Expenditure on Delivery Care in Public and Private Health Sectors – A Study in a Rural District of Pakistan». Amazonia Investiga 11, no. 54 (agosto 30, 2022): 121–136. Accedido enero 16, 2026. https://amazoniainvestiga.info/index.php/amazonia/article/view/2046.