(3CMGOjK eY CMeO Hf HdI Yd LjdfG Gf jYWj GdcdeI ddTHGH (B/s - (3ehSi , YHO Gddg s ([(3Ohf ecGf(B] :s (3GJQfJja ,s, 1989)
Keywords: (3GdLjds; (3CMeO Hf HdIs; (3GdcdeIs; (3CMGOjK s