https://archive.li.mahidol.ac.th/handle/0280026809/97 Tue, 16 Jun 2026 11:17:28 GMT 2026-06-16T11:17:28Z https://archive.li.mahidol.ac.th:443/bitstream/id/4011/ https://archive.li.mahidol.ac.th/handle/0280026809/97