Said Selman Kamoon. “CALCULATION AND MEASUREMENT OF THE EMITTING LIGHT FROM EXCITING ARGON ATOMS BY BETA PARTICLES OF TRITIUM ”. Journal of Madenat Alelem University College, Vol. 7, no. 1, June 2015, pp. 86-103, http://116.203.176.164/index.php/JMAUC/article/view/164.