Sari, Ayu, 		Sahputra, Hendra, AND 		Aulia, Aulia.
" The Implementation Of E-Filing System Effects On Taxpayer Compliance In Submitting Annual Spt At Dgt Regional Offices, North Sumatra I" <em>Accounting and Business  Journal</em> [Online], Volume 4 Number 1 (24 January 2022)