This document is a seminar paper written in Bosnian on theories of the nature of law. It was written by Aldin Selimović for a class on Legal Structures at the University of Zenica Faculty of Law. The paper was written in April 2009 under the supervision of Professor Tarik Haverić and Assistant Maša Alijević. It then provides information on websites that offer free seminar papers, diploma works, and matura works in various subject areas in both Bosnian and Serbian, as well as PowerPoint presentations and other educational materials.