APA-referens

Jasmine K. S ,Rajkumar K K. (1993). Customs duty payment system. university of kerala.

Chicago-stil citat

Jasmine K. S ,Rajkumar K K. Customs Duty Payment System. trivandrum: university of kerala, 1993.

MLA-referens

Jasmine K. S ,Rajkumar K K. Customs Duty Payment System. university of kerala, 1993.