1937 1800 1460 1496 1628 1417 1981 1971 1418 1587 1969 1986 1976 1644 1908 1084 1814 1815 1743 1641 1086 1334 1373 1182 1608 1392 1515 1600 1543 1884 1091 1295 1853 1179 1420 1967 1878 1573 1606 1042 1525 1790 1812 1531 1633 1806 1383 1629 1210 1833 1630 1136 1100 1759 1464 1920 1235 1029 1100 1402 1975 1457 1308 1594 1895 1148 1226 1032 1993 1033 1591 1446 1663 1873 1034 1496 1482 1367 1038 1308 1388 1458 1741 1942 1280 1190 1928 1698 1111 1353 1846 1156 1802 1118 1485 1774 1883 1487 1722 https://ulib.bcnpb.ac.th/ulib6search.usisassist.php?fromrefcode=&keyword=%20Michael%20Baehrมีปัญหาในการเชื่อมต่อ/Connection Problems (open url)