(3YbhHI GdSQbI ai Gdabg GdGSdGei (B/ s - (3YHOGdaJGM eMeO GHhGdYjfjfs ([S.N] : (3dLfI GdGYdGe hGdOQGSGJ GdeSJbHdjI , s, 1983)
Keywords: (3GdbGfhfs; (3bGfhf GdeQGaYGJs; (3GdTQjYI GdGSdGejIs; (3Gdabg GdGSdGeis; (3GdSQbIs