Prathēt Thai mung khao sū satawat thī 21, praden samkhan nai nayōbāi sāthārana lae tāngprathēt khō̜ng Prathēt Thai nai thotsawat nā by Sathāban Nayōbāisư̄ksā (samākhom Sangkhommasāt Hāeng Prathēt Thai) | Menrva Books | MenrvaBooks