Mann, Lawrence, author
Lexington Books, 1976
Buku Teks
Seymour, Ian
St.Martin's Press, 1981
Buku Teks
Edi Slamet Irianto, author
Directorate General of Taxes, Ministry of Finance, Republic of Indonesia, 2012
Artikel Jurnal
Artikel Jurnal
Duffy, Daniel J., author
John Wiley & Sons, 2004
Buku Teks