(3fRGY GdMOhO Hjf GdShOGf hCKjhHjG (B:s (3OQGSI GdJWhQGJ GdOHdheGSjI h GdChVGY GdbGfhfjI dMOhO GdShOGf eY CKjhHjG hCQjJQjG (B/s - (3GdHNGQj YHO Gddg GdLYdjs ([(3ecGf GdfTQ ZjQ eMOO(B] :s [(3GdfGTQ ZjQ eMOO(B],s, 1980)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdfRGYGJ Hjf GdOhds; (3GdbGfhf GdOhdj GdYGes