„Review on Challenges in Healthcare Delivery “ (2025) International Journal of Progressive Research and Innovation in Science, Engineering, Technology, Commerce, Management and Law (IJPRISETCML), 1(1), стр. 26–31. достъпен на: https://ijprisetcml.com/index.php/IJPRISETCML/article/view/7 (отворен на: 12 Септември 2026).