Ameen, Y. I., Taher, M. M., & Abduljabar, M. F. (2023). Evaluation of root development of mandibular first molar of children (6-12) years old visiting P.O.P. department College of Dentistry/ Hawler Medical University. Erbil Dental Journal (EDJ), 6(2), 225–232. https://doi.org/10.15218/edj.2023.24