1. Principles of dental imaging;Langland,2002
2. Oral roentgenographic diagnosis;Stafne,1975
3. Principles and practice of oral radiographic interpretation;Worth,1963
4. Oral radiology principles and interpretation;White,2014
5. Available at: http://www.ada.org/en/publications/ada-news/2012-archive/november/ada-updates-dental-radiograph-recommendations. Accessed February 13, 2017.