Thepsawat C. The Readiness of Management in Learning Process towards the ASEAN Economic Community in Secondary School of Ratchaburi Province. HSSJ [Internet]. 2014 Sep. 30 [cited 2024 May 19];2(1):29-42. Available from: https://so03.tci-thaijo.org/index.php/hssj/article/view/272805