., B., A. P. . Singh, A. P. . Singh, and H. . Singh. “Microspheres: Advances, Challenges, and Future Perspectives in Biomedical Applications”. International Journal of Engineering Science and Generic Research, vol. 11, no. 2, Apr. 2025, pp. 1-9, https://www.ijesar.ijmbs.info/index.php/ijesar/article/view/232.