1. Introduction to Radiological Physics and Radiation Dosimetry;Attix,1986
2. BIPM, 2004. Measuring Condition Used for the Calibration of Ionization Chambers at the BIPM. Rapport BIPM-04/17. Bureau International des Poids et Mesures, Sèvres.
3. Response characteristics of a Tandem ionization chamber in standard X-ray beams;Costa;Appl. Radiat. Isot.,2003
4. Absorbed dose determination in external beam radiotherapy: an international code of practice for dosimetry based on standards of absorbed dose to water;IAEA,2001
5. Review of radiation oncology physics: a handbook for teachers and students;IAEA,2003