Philip, A. P. (2013). Income tax. Soba Publications.
Chicago Style aipamenaPhilip, A. P. Income Tax. Kottayam: Soba Publications, 2013.
MLA aipamenaPhilip, A. P. Income Tax. Soba Publications, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.