Dear Sivasankari, You can make use 856 MARC field in Koha for input an external link. Please read this page to get an idea about this field, http://www.loc.gov/marc/856guide.html Please remember again, Koha is a library management system, dont expect the features of digital library in it. -- Vimal Kumar V. Asst. Librarian Asian School of Business Technopark, Trivandrum-695 581 Web: www.vimalkumar.co.nr Blog: http://vimalkumar.oksociety.in OK Society Volunteer. http://oksociety.in --------------------------------------------------------------------------- "I forget what I was taught. I only remember what I have learnt" -Patrick White