(3eUWai dWai GdefadhWi (B: s (3MjGJI hGOHI (B/ s - (3eMeO GHhGdGfhGQs ((3GdbGgQI (B: s (3ecJHI GdTHGH , s, 1981)
Keywords: (3GdGOHGAs; (3eUWai dWai GdefadhWis