1465
1812
1509
1426
1470
1909
1712
1881
1732
1892
1237
1929
1545
1594
1579
1557
1825
1519
1036
1069
1765
1188
1996
1470
1462
1345
1224
1918
1808
1953
1792
1430
1878
1949
1895
1421
1997
1136
1678
1719
1969
1840
1338
1962
1268
1532
1422
1676
1912
1214
1643
1466
1243
1631
1208
1060
1414
1369
1658
1898
1243
1986
1392
1966
1285
1110
1814
1567
1178
1979
1548
1563
1940
1715
1262
1523
1042
1171
1169
1739
1316
1383
1426
1188
1148
1992
1205
1659
1487
1742
1987
1255
1773
1464
1563
1396
1052
1009
1730
http://library.bcnpb.ac.th/ulib6search.usisassist.php?fromrefcode=&keyword=%20Ralph%20C.%20Benson,%20Martin%20L.%20Pernollมีปัญหาในการเชื่อมต่อ/Connection Problems (open url)