1350
1981
1852
1990
1109
1546
1426
1524
1080
1433
1530
1770
1394
1978
1559
1182
1483
1054
1951
1249
1079
1445
1634
1174
1940
1146
1417
1403
1279
1218
1230
1746
1564
1048
1846
1574
1092
1430
1988
1439
1212
1396
1501
1441
1180
1618
1060
1124
1164
1138
1470
1936
1731
1288
1971
1644
1313
1813
1840
1595
1914
1431
1576
1599
1728
1752
1448
1761
1052
1897
1777
1205
1580
1904
1272
1439
1711
1161
1425
1028
1496
1351
1467
1123
1161
1542
1561
1026
1766
1560
1429
1224
1869
1428
1145
1446
1236
1587
1910
http://library.phcsuphan.ac.th/search.usisassist.php?fromrefcode=&keyword=%20Education%20United%20States%20Historyมีปัญหาในการเชื่อมต่อ/Connection Problems (open url)