(3GdYQH (B/ s - (3eMeO bfOjd GdHbdis; (3eMeO eCehf fLGs; (3eMeO e(B. (3GdGQfGDhWs; (3GOhGQ YWjIs ([S.N] : (3GdTQcI GdYQHjI ddWHGYI hGdfTQ , s, 1961)
Keywords: (3GdYGde GdYQHis; (3GdLGgdjIs; (3THg GdLRjQI GdYQHjIs; (3GdJGQjN GdGSdGeis; (3GdYQHs; (3GdbHGFd GdYQHjIs; (3GdHOhs