Amrutha Preetham. (2012). Revenue stamp. Matrubhoomi.
Chicago Style aipamenaAmrutha Preetham. Revenue Stamp. Kozhikode: Matrubhoomi, 2012.
MLA aipamenaAmrutha Preetham. Revenue Stamp. Matrubhoomi, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.