1841
1586
1429
1934
1780
1456
1945
1099
1626
1001
1947
1646
1090
1959
1851
1495
1738
1261
1125
1855
1105
1219
1506
1994
1071
1188
1717
1318
1575
1700
1553
1117
1275
1457
1574
1304
1622
1728
1843
1259
1716
1932
1282
1240
1528
1282
1135
1371
1778
1811
1139
1030
1639
1889
1479
1395
1597
1628
1577
1735
1809
1186
1417
1354
1386
1547
1279
1287
1335
1400
1324
1009
1121
1799
1506
1805
1552
1257
1548
1164
1776
1460
1288
1974
1923
1437
1167
1167
1084
1989
1500
1904
1784
1020
1773
1267
1896
1603
1473
https://ulib.bcnpb.ac.th/ulib6search.usisassist.php?fromrefcode=&keyword=%20Claude%20A.%20Welch%20...%20[et%20al.]มีปัญหาในการเชื่อมต่อ/Connection Problems (open url)