Saphāp sētthakit khō̜ng Thai ratchasamai Ratchakān thī 4 læ Ratchakān thī 5 čhāk ʻēkkasān chan ton rūam samai khō̜ng Thai = Economic conditions of Siam in the reigns of King Mongkut and King Chalalongkorn from contemporary documents
Rāingān kāntrūat rātchakān hūa mư̄ang khō̜ng Thai samai Ratchakān thī 5 : phāp sathō̜n sētthakit læ sangkhom Thai nai yuk "Sayām mai" = The inspection reports of Thailand's provinces in the reign of King Rama V : a reflection of the socio-economic conditions of "new Siam"