(3GdfXQjI GdYGeI ddbGYOI GdGLQGFjI GdLfGFjI (B/ s - (3YHOGdaJGM eUWai GdUjais ([S.N] : (3LGeYI HjQhJ GdYQHjI , s, 1974)
Keywords: (3GdbGfhf GdLfGFis; (3GdGLQGAGJ GdLfGFjIs; (3GdbhGfjf hGdJTQjYGJs