1 Whaites E, "Periapical radiography. In: Essentials of dental radiography and radiology. 3rd ed" Churchill Livingstone 92-, 2002
2 Newman ME, "Extraoral radiographic technique: an alternative approach" 29 : 419-421, 2003
3 Fisher D, "Extraoral radiographic technique for third molars" 19 : 306-307, 1974
4 Parks ET, "Digital radiography: an overview" 3 : 23-39, 2002
5 Chen CH, "An aiming device for an extraoral radiographic technique" 33 : 758-760, 2007
1 Whaites E, "Periapical radiography. In: Essentials of dental radiography and radiology. 3rd ed" Churchill Livingstone 92-, 2002
2 Newman ME, "Extraoral radiographic technique: an alternative approach" 29 : 419-421, 2003
3 Fisher D, "Extraoral radiographic technique for third molars" 19 : 306-307, 1974
4 Parks ET, "Digital radiography: an overview" 3 : 23-39, 2002
5 Chen CH, "An aiming device for an extraoral radiographic technique" 33 : 758-760, 2007