| หมวดหมู่ | Royal Literary Works, King Rama VI: Non-fictions |
| Author | Vajiravudh, King of Thailand, 1881-1925 |
| Published Date | 1370 |
| Place | Bangkok : Siam observer Press, 1913 |
| Notes | by Asvabahu Reprint of a paper published in the columns of the "Siam Observer" of September 12, 1913 |