Beattie, C. N.
The elements of income tax law
Stevens & Sons Lim. , 1957
 Buku Teks
Stanley, Joyce, 1901-
Federal income tax law
Warren, Gorham and Lamont, 1971
 Buku Teks
The law and practice of Singapore income tax
technical editors, Pok Soy Yoong, Ng Keat Seng, Steven M. Timms
Lexis Nexis, 2011
 Buku Referensi
Shariif Imadudiin
Tinjauan peraturan direktur jenderal nomor per-17/pj/2015 terhadap beberapa pekerja bebas tertentu = Review on regulation of the director general of tax no per-17/pj/2015 on norms of net income calculation of several specific free workers
2018
 UI - Skripsi Membership
Windriaty
Optimalisasi pemungutan PPh atas bentuk usaha tetap di Indonesia: studi kasus pada KPP Badora = Optimization of the income tax collection on permanent establishment in Indonesia: a case study at Badora tax offfice
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2004
 UI - Tesis Membership