Counterfeit fifty Ringgit Malaysian banknotes authentication using novel graph-based chemometrics method Posted on March 24, 2022 By Becky Carter Nurfarhana Hassan, Tahir Ahmad, Naji Arafat Mahat, Hasmerya Maarof & Foo Keat How Sci Rep; 12:4826; 2022 Access article Crime Scene Investigation and Reconstruction, Questioned Documents, Trace Evidence