1331 1315 1775 1452 1743 1445 1059 1069 1648 1352 1744 1610 1060 1508 1314 1275 1576 1392 1955 1499 1490 1133 1084 1534 1169 1431 1462 1553 1716 1982 1433 1675 1847 1359 1912 1500 1801 1951 1836 1617 1371 1918 1087 1356 1532 1833 1594 1973 1575 1242 1189 1887 1374 1874 1322 1215 1538 1527 1604 1428 1220 1100 1769 1254 1405 1829 1238 1584 1553 1823 1949 1569 1171 1111 1978 1912 1802 1011 1086 1913 1763 1086 1457 1614 1128 1886 1475 1563 1550 1422 1215 1726 1347 1586 1002 1926 1240 1766 1682 http://library.phcsuphan.ac.th/search.usisassist.php?fromrefcode=&keyword=%20Telecommunicationมีปัญหาในการเชื่อมต่อ/Connection Problems (open url)