| Bibliography |  Suggestions |
| http://www.britishmuseum.org/collection/search?museum_number=87992 |
| http://www.ebl.lmu.de/library/BM.87992 |
| http://cdli.earth/P413834 |
|
| http://www.britishmuseum.org/collection/search?museum_number=87992 |
| http://www.ebl.lmu.de/library/BM.87992 |
| http://cdli.earth/P413834 |