(3GSeGYjd jS ai GdGSWhd (B((3TQGFW ajOjh(B) / s - (3aWjf YHOGdhgGHs ((3GdbGgQI (B: s (3GadGe LeGd GddjKi ddSjfeG hGdajOjh , s, 1960)
Keywords: (3GdGadGe GdYQHjIs; (3GdajOjh, CTQWIs; (3GdJSLjdGJ GdeQFjIs