Tinjauan asas keadilan dan netralitas dalam pemotongan pajak penghasilan 21 atas penarikan jaminan hari tua pada badan penyelenggara jaminan sosial ketenagakerjaan = Equity and neutrality principle study of income tax article 21 witholding on old age saving withdrawal organized by social security manpower agency

Analisis pengenaan pajak penghasilan pasal 21 terhadap penghasilan peserta magang ditinjau dari asas kepastian hukum (tinjauan PER-31/PJ/2012) = Analysis of income tax article 21 imposition on internship income based on certainty principle perspective review of PER-31/PJ/2012)

Analisis mekanisme penghitungan pajak penghasilan pasal 21 atas pegawai tetap = The analysis of mechanism calculation of income tax article 21 on a permanent employee

Analisis penerapan pajak penghasilan pasal 21 atas komisi petugas dinas luar asuransi ditinjau dari asas certainty = Analysis of income tax article 21 imposition on commision for insurance affair officer reviewed with certainty principle

Analisis Kebijakan Pengaturan Pajak Penghasilan atas Biaya Imbalan Natura atau Kenikmatan Ditinjau dari Asas Preferensi Lex Superior Derogat Legi Inferiori = Analysis of the Income Tax Policy Regulation on Fringe Benefits or Benefits in a form of Pleasure Expenses Based on the Preference Principle of Lex Superior Derogat Legi Inferiori