TY - GEN AU - Enas Esmat Abbas AU - Anwar Abdelazim Elsayed , AU - Mohamed Mokhtar Ahmed Aly Sharaf , TI - Determination of natural radioactivity concentration in some Egyptian building material / PY - 1996/// CY - Cairo : PB - Enas Esmat Abbas , N1 - Thesis(M.Sc.) - Cairo University - Faculty of Science - Department of Biophysics UR - http://172.23.153.220/th.pdf ER -