Hivatkozások[1] https://isj.educv.ro/sites/default/files/Adresa%206918.pdf [2] https://isj.educv.ro/sites/default/files/Adresa%20M.E.N.pdf [3] https://isj.educv.ro/sites/default/files/Tabel%20cu%20metodi%C8%99ti.pdf