Dharel, S., B. Koirala, M. Dali, and G. Birajee. “Longstanding Retained Foreign Body in Orofacial Region: A Diagnostic Challenge”. Journal of Nepalese Association of Pediatric Dentistry, vol. 4, no. 1, Dec. 2023, pp. 41-45, doi:10.3126/jnapd.v4i1.68705.