การประทับเวลาอิเล็กทรอนิกส์ (Electronic Time-Stamping)14 ก.ค. 2566PDF-ขมธอ. 33-2566 การประทับเวลาอิเล็กทรอนิกส์ (Electronic Time-Stamping)24 ม.ค. 2566-https://www.etda.or.th/getattachment/a1dcde9d-6f20-4503-a295-e80235b5e8f3/%E0%B8%82%E0%B8%A1%E0%B8%98%E0%B8%AD-33-2566.aspxคู่มือการทดสอบความสอดคล้องของเวลากับ มาตรเวลาร่วมสากล https://www.etda.or.th/getattachment/Our-Service/Standard/txt-Recommendation/Information/%E0%B8%94%E0%B8%B2%E0%B8%A7%E0%B8%99%E0%B9%82%E0%B8%AB%E0%B8%A5%E0%B8%94%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B8%90%E0%B8%B2%E0%B8%99/ETDA-Recommendation/Recommendation/%E0%B8%82%E0%B8%A1%E0%B8%98%E0%B8%AD-33-2566/%E0%B8%84%E0%B8%A1%E0%B8%AD%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%97%E0%B8%94%E0%B8%AA%E0%B8%AD%E0%B8%9A%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%AA%E0%B8%AD%E0%B8%94%E0%B8%84%E0%B8%A5%E0%B8%AD%E0%B8%87%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B9%80%E0%B8%A7%E0%B8%A5%E0%B8%B2%E0%B8%81%E0%B8%9A%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B9%80%E0%B8%A7%E0%B8%A5%E0%B8%B2%E0%B8%A3%E0%B8%A7%E0%B8%A1%E0%B8%AA%E0%B8%B2%E0%B8%81%E0%B8%A5.pdf.aspx?lang=th-TH https://www.etda.or.th/getattachment/a1dcde9d-6f20-4503-a295-e80235b5e8f3/%E0%B8%82%E0%B8%A1%E0%B8%98%E0%B8%AD-33-2566.aspxhttps://www.etda.or.th/getattachment/Our-Service/Standard/txt-Recommendation/Information/%E0%B8%94%E0%B8%B2%E0%B8%A7%E0%B8%99%E0%B9%82%E0%B8%AB%E0%B8%A5%E0%B8%94%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B8%90%E0%B8%B2%E0%B8%99/ETDA-Recommendation/Recommendation/%E0%B8%82%E0%B8%A1%E0%B8%98%E0%B8%AD-33-2566/%E0%B8%84%E0%B8%A1%E0%B8%AD%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%97%E0%B8%94%E0%B8%AA%E0%B8%AD%E0%B8%9A%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%AA%E0%B8%AD%E0%B8%94%E0%B8%84%E0%B8%A5%E0%B8%AD%E0%B8%87%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B9%80%E0%B8%A7%E0%B8%A5%E0%B8%B2%E0%B8%81%E0%B8%9A%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B9%80%E0%B8%A7%E0%B8%A5%E0%B8%B2%E0%B8%A3%E0%B8%A7%E0%B8%A1%E0%B8%AA%E0%B8%B2%E0%B8%81%E0%B8%A5.pdf.aspx?lang=th-TH