1573
1091
1393
1127
1523
1870
1010
1977
1070
1612
1903
1432
1493
1226
1822
1063
1571
1525
1410
1396
1540
1698
1927
1925
1980
1112
1511
1188
1209
1102
1915
1426
1321
1449
1603
1666
1111
1694
1036
1035
1155
1899
1692
1671
1501
1933
1941
1901
1308
1994
1195
1055
1021
1346
1368
1074
1529
1190
1059
1121
1636
1976
1412
1838
1226
1632
1489
1729
1436
1569
1457
1328
1617
1206
1380
1237
1381
1591
1089
1513
1259
1737
1832
1259
1541
1072
1472
1984
1919
1767
1517
1313
1217
1692
1333
1622
1350
1341
1824
http://library.phcsuphan.ac.th/search.usisassist.php?fromrefcode=&keyword=%20Willis,%20David%20Oมีปัญหาในการเชื่อมต่อ/Connection Problems (open url)