Title: Prawattisāt sētthakit khō̜ng Rātchaʻānāčhak Lāo Lān Chāng samai Khritsasattawat thī 14-17 čhāk "Rat kānkhā phāi nai phāk phư̄n thawīp" pai sū "Rat kưng mư̄ang thā"
Description: On the history of Lao on trade.