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
Phonkrathop dān sētthakit læ kānmư̄ang thō̜ngthin khō̜ng rabop sūai ʻĪsān, Phō̜. Sō̜. 2325-2443 = The local political and economic impact of the "suai" system in Isan, 1782-1900
Khwāmplīanplǣng thāng sētthakit læ sangkhom khō̜ng lum Mǣnam Nān, Phō̜.Sō̜. 2398-2504 = The economic and social transformation of Nan River Basin, A.D. 1855-1961
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"