https://koinsep.org/%cf%85%cf%80%ce%bf%cf%87%cf%81%ce%b5%cf%89%cf%84%ce%b9%ce%ba%ce%ac-%cf%84%ce%b1-pos-%ce%b3%ce%b9%ce%b1-%ce%b1%ce%ba%cf%8c%ce%bc%ce%b1-58-%ce%ba%ce%bb%ce%ac%ce%b4%ce%bf%cf%85%cf%82/
Υποχρεωτικά τα POS για ακόμα 58 κλάδους