Gaya APA
Hutagaol, J. (2005).
Flashpphop 2006; Kunci sukses pengisian SPT Than PPh org pribadi(SPT1770&1770S) .
Jakarta:
Natio Consulting.
Gaya MLA
Hutagaol, John.
"Flashpphop 2006; Kunci sukses pengisian SPT Than PPh org pribadi(SPT1770&1770S)".
Jakarta:
Natio Consulting,
2005.
Text.