https://archive.li.mahidol.ac.th/handle/0280026809/98 Mon, 01 Jun 2026 11:09:20 GMT 2026-06-01T11:09:20Z https://archive.li.mahidol.ac.th:443/bitstream/id/4013/ https://archive.li.mahidol.ac.th/handle/0280026809/98