(3GdJYdje aj GdeLJeY GdMOjKs - (3OGajO ESJjGP (B. (3Ss; (3GdCMeQ eMeO YGOds ((3JhfSs (3GdefXeI GdYQHjI ddJQHjI h GdKbGaI h GdYdhes, 1991)
Keywords: (3GdJYdjes; (3GdeLJeY GdMOjKs