Parolia, A., M. Kundabala, M. Thomas, M. Mohan, and N. Joshi. “Three Rooted, Four Canalled Mandibular First Molar (Radix Entomolaris)”. Kathmandu University Medical Journal, vol. 7, no. 3, Feb. 2010, pp. 289-92, doi:10.3126/kumj.v7i3.2739.