(3GdJgL GdGSdGei deGPG (B/ s - (3LYaQ eMeO YHOis ([S.N] : (3GdecJH GdeUQi GdMOjK , s, 1981)
Keywords: (3GdGSdGe hGdeLJeYs; (3GdGSdGe ai GdShOGfs