We hereby stating that 1. The thesis that we submitted in order to complete bachelor degree at Brac University-is our own original work.2. This thesis does not contain any material which has been published or written by a third party, except accurate referencing and appropriately cited.3. This thesis also does not contain any material that has been accepted, or submitted, for any other degree or diploma at a university or other institution. 4. We have acknowledged all main sources which we took for help.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.