(3TYQ h ebfGU (B: (3ef GdEeGQGJ h GdNdjL (B/ (3JCdja h EYOGO ZSGf GdMSf(B.s - (3MSf, ZSGfs ((3CHhXHj (B: s (3gjFI CHh XHj ddKbGaI h GdJQGK, CcGOjejI GdTYQ,s, 2011)
Keywords: (3GdTYQ GdfHWj(B--(3GdEeGQGJ GdYQHjI GdeJMOIs; (3GdTYQ GdfHWj(B--(3THg GdLRjQI GdYQHjI(B.s; (3GdUjO HGdUbhQ(B--(3GdTYQ(B.s; (3GdTYQGA GdYQH(B--(3GdGeGQGJ GdYQHjI GdeJMOI(B--(3GdYUQ GdMOjK(B.s; (3GdTYQGA GdYQH(B--(3Ohd GdNdjL GdYQHj(B--(3GdYUQ GdMOjK(B.s