1. Root canal anatomy: road map to successful endodontics;Slowey;Dent Clin North Am,1979
2. Anatomy of the root canals of the incisors, cuspids, and bicuspids of the permanent teeth;Mueller;J Am Dent Assoc,1933
3. The internal anatomy of the teeth with special reference to the pulp and its branches;Barrett;Dent Cosmos,1925
4. Anatomy of the root canals;Okumura,1926
5. Root canal morphology of mandibular first and second premolars;Zillich;Oral Surg,1973