1814
1604
1642
1375
1801
1935
1301
1069
1821
1522
1019
1411
1408
1350
1807
1500
1055
1957
1458
1916
1117
1475
1609
1403
1824
1898
1009
1545
1461
1466
1067
1888
1070
1820
1176
1787
1586
1714
1806
1623
1042
1473
1829
1470
1914
1558
1902
1103
1291
1499
1659
1762
1547
1438
1593
1983
1582
1687
1473
1701
1092
1368
1705
1966
1395
1463
1751
1297
1700
1651
1798
1928
1088
1790
1772
1949
1750
1858
1789
1450
1288
1236
1137
1337
1270
1130
1621
1446
1672
1271
1727
1307
1537
1931
1990
1508
1293
1316
1278
http://library.phcsuphan.ac.th/search.usisassist.php?fromrefcode=&keyword=%20Erickson,%20Fritz%20J.มีปัญหาในการเชื่อมต่อ/Connection Problems (open url)