Fariha Irfan, Syed Abrar Ali, Hina Khan, Abdur Rehman, Hira Akhtar, and Muhammad Zohaib Younus, “PREVALENCE OF C-SHAPED ROOT CANALS AND ITS TYPES IN MANDIBULAR SECOND MOLARS IN KARACHI PAKISTAN: AN IN-VITRO STUDY”, PODJ, vol. 42, no. 4, pp. 184-188, Jan. 2023.