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Study of Radon Gas Concentration in Egyptian Environment: Thesis Presented in Partial Fulfillment of the Requirements for the Degree of Master of Teacher Preparation in Science to Physics Department, Faculty of Education, Ain Shams University / by Ayman Mohammed Abd El-Moaty Abd Alla; Supervisors Ashry A. Ashry, Hussein M. El-Samman, Wafaa M. Arafa.
- 553.0962
- Abd Alla, Ayman Mohammed Abd El-Moaty.
- Ain Shams University, Faculty of Education, Physics Department,
- 2000.
- Cairo :