Khan, S., M. Pirvani, S. Humayoun, O. Anjum, S. Akram, and M. A. Nathani. “SYNTHESIS OF NANO - HYDROXYAPATITE AND NANO - FLUOROAPATITE PARTICLES BY SOL-GEL METHOD”. Pakistan Journal of Medicine and Dentistry, vol. 8, no. 2, Nov. 2023, p. 5, http://ojs.zu.edu.pk/ojs/index.php/pjmd/article/view/104.