Jasmine K. S ,Rajkumar K K. (1993). Customs duty payment system. university of kerala.
Chicago Style aipamenaJasmine K. S ,Rajkumar K K. Customs Duty Payment System. trivandrum: university of kerala, 1993.
MLA aipamenaJasmine K. S ,Rajkumar K K. Customs Duty Payment System. university of kerala, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.