“A Comparative Study of the Retention Force of Flexible Clasps for Non-Metal Clasp Removable Partial Dentures in Different Undercuts (An In-Vitro Study)” (2021) Journal of Hama University, 4(11). Available at: https://journal.hama-univ.edu.sy/huj/article/view/679 (Accessed: 6 June 2026).