(3GdNWjFI hGdJcajQ ef GdHfjhjI Gdi GdJTQjMjI bQGAI fbOjI dfehPL GfSGfi eYGUQ (B: s (3ebOeI fXQjI hOQGSI JWHjbjI (B/ s - (3YHOGddg eMeO GdZPGeis ([S.N] : 2000 (3ddKbGaI hGdfTQ , s, 1991)
Keywords: (3GddZI GdYQHjIs; (3Yde GddZIs; (3GdHfjhjIs