1756
1688
1029
1327
1169
1854
1685
1359
1553
1675
1813
1808
1057
1660
1303
1779
1283
1531
1713
1617
1013
1685
1652
1682
1408
1908
1375
1158
1351
1531
1965
1714
1777
1561
1103
1371
1650
1816
1099
1505
1855
1728
1129
1662
1705
1134
1502
1918
1092
1768
1657
1313
1194
1608
1627
1801
1527
1711
1415
1135
1565
1790
1117
1345
1185
1406
1251
1149
1850
1738
1872
1958
1066
1053
1039
1602
1458
1671
1098
1785
1128
1126
1912
1825
1034
1237
1100
1303
1863
1649
1545
1506
1643
1578
1192
1025
1555
1701
1429
https://ulib.bcnpb.ac.th/ulib6search.usisassist.php?fromrefcode=&keyword=%20Snell,%20Richard%20S.มีปัญหาในการเชื่อมต่อ/Connection Problems (open url)