Kemp, Ronald K.
Principles of income taxation
Butterworth, 1991
 Buku Teks
Gaffney, Dennis J.
Principles of federal income taxation
McGraw-Hill, 1984
 Buku Teks
Gaffney, Dennis J.
Principles of federal income taxation
McGraw-Hill, 1982
 Buku Teks SO
Joanne E. Magge
Principles of canadian income tax law/ Peter W. Hogg, Joanne E. Magge
Carswell, 1995
 Buku Teks SO
Nico Herry Janto
Analysis of the fiscal policy regarding income tax article 21 on employee's earnings born by the government - an overview from the equality and certainty principles
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2004
 UI - Tesis Membership