(3ceGd LfHdGW ai GdMbjbI hGdJGQjN (B/ s - (3QGLi YTbhfis ([S.N] : (3dLfI GdGYdGe hGdOQGSGJ GdeSJbHdjI , s, 1989)
Keywords: (3GdYUQ GdMOjKs; (3JGQjNs; (3dHfGfs; (3GdGMRGH GdSjGSjIs