Prihastuti, A. W., M. N. Hamzah, and N. Rosanti. “Impact of Frontliner Quality, Digital Services, and Office Facilities on Taxpayer Satisfaction”. RIGGS: Journal of Artificial Intelligence and Digital Business, vol. 4, no. 4, Nov. 2025, pp. 659-65, doi:10.31004/riggs.v4i4.2368.