HIDAYAH, N.; SUKIRNO, S.; HUTAMA, P. S. P.; SAYEKTI, F. N. Peningkatan Kompetensi Pajak dengan Pelatihan Perhitungan PPh 21 Berbasis Tarif Efektif Rata-rata pada Guru Akuntansi SMK di Kota Yogyakarta: Enhancing Tax Competence through Income Tax Article 21 Calculation Training Based on the Average Effective Rate for Vocational High School Accounting Teachers in Yogyakarta City. PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat, [S. l.], v. 11, n. Suppl-1, 2026. DOI: 10.33084/pengabdianmu.v11iSuppl-1.10871. Disponível em: https://journal.umpr.ac.id/index.php/pengabdianmu/article/view/10871. Acesso em: 7 feb. 2026.