20 TRADE | MT 2031 marketing | BT1 distance selling | BT2 sale | BT3 commercial transaction | NT1 electronic signature | RT collaborative economy [1621] | cross-border dimension [4.7] [1616] | digital contract [1211] | Internet [3226] | unso
20 ÉCHANGES ÉCONOMIQUES ET COMMERCIAUX | MT 2031 commercialisation | BT1 vente à distance | BT2 vente | BT3 acte de commerce | NT1 signature électronique | RT contrat numérique [1211] | dimension transfrontière [4.7] [1616] | économie collaborat