(3GdMeGjI GdOSJhQjI ddehXa GdYGe (B: s (3OQGSI ebGQfI Hjf eUQ h aQfSG (B/ s - (3eMeO aJMi eMeO eMeO MSGfjfs; (3GMeO MGaX fLes; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI(B:s (3cdjI GdMbhb (B- (3LGeYI GdRbGRjb,s, 1981)
(3CWQhMI (B((3OcJhQGg(B)-(3LGeYI GdRbGRjb, cdjI GdMbhb, bSe GdbGfhf GdGOGQj (B1996.s
(3jTJed Ydi EQLGYGJ HjHdjhLQGajI(B: 524 -555(3UaMIs
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Keywords: (3GdbGfhf GdGOGQjs; (3GdbQGQJ GdGOGQjIs; (3GdbGVj GdEOGQjs; (3GdGOGQI GdYGeIs; (3GdOSJhQs; (3QSGFd LGeYjIs -- (3LGeYI fGUQs -- (3cdjI GdbGfhfs