(3GdTQGjjf GdeaJhMI dGeQjcG GddGJjfjI (B/ s - (3LGdGfh, GOhGQOhs; (3HTjQ GdSHGYis; (3GMeO MSGfs ([S.N] : (3OGQ Gdfjd , s, 1981)
Keywords: (3GdGMhGd GdGLJeGYjIs; (3GdGMhGd GdSjGSjIs; (3GdGMhGd GdGbJUGOjIs; (3GeQjcG GdLfhHjIs