Hin-on, R. (2024). The use of Modern Official Documents in the early Modern Siam: A Case Study of the Department of the Royal Secretariat during the Reign of King Chulalongkorn. Journal of Arts and Thai Studies, 46(1), E2943 (1–13). retrieved from https://so08.tci-thaijo.org/index.php/artssu/article/view/2943