Analisis perlakuan pajak penghasilan atas perjanjian Build, Operate, Transfer (BOT) di tinjau dari asas certainty = Treatment analysis of income tax on build, operate, transfer agreement based on certainty principle

Penyelenggaraan kewajiban pelayanan umum atau public service obligation (PSO) oleh anak perusahaan badan usaha milik negara = Implementation of public service obligations (PSO) by state-owned enterprises subsidiaries

Analisis pemungutan pajak penghasilan pasal 22 atas pembelian listrik swasta oleh PT PLN (persero) ditinjau dari asas kepastian hukum = Analysis of collection of income tax article 22 on the purchase of private electricity by PT PLN (persero) based on certainty of law principle

Analisis perlakuan pajak penghasilan atas perjanjian Build, Operate, Transfer (BOT) di tinjau dari asas certainty = Treatment analysis of income tax on build, operate, transfer agreement based on certainty principle

Analisis perlakuan pajak penghasilan atas virtual office = Treatment analysis of income tax on virtual office