فهرس المقالات Soheila Ebrahimi-Azandariani المقاله 1 - Effect of combined laser dyes on the efficiency of cholesteric liquid crystal lasers 10.1007/s40094-019-0318-3 Hamidreza Shirvani-Mahdavi Soheila Ebrahimi-Azandariani Journal of Theoretical and Applied Physics , العدد 1 , السنة 0 , زمستان 2019