1141 1751 1764 1189 1273 1592 1214 1273 1539 1642 1662 1343 1479 1876 1791 1792 1681 1785 1394 1998 1136 1225 1314 1447 1500 1158 1822 1502 1384 1146 1449 1106 1480 1575 1866 1542 1161 1352 1265 1330 1889 1927 1990 1010 1806 1548 1093 1385 1546 1447 1533 1413 1756 1170 1565 1786 1989 1163 1141 1351 1330 1202 1553 1998 1547 1510 1434 1775 1689 1211 1446 1708 1709 1413 1045 1798 1663 1800 1586 1315 1242 1213 1748 1867 1933 1691 1074 1814 1269 1634 1990 1691 1430 1868 1287 1150 1007 1206 1352 http://library.phcsuphan.ac.th/search.usisassist.php?fromrefcode=&keyword=%20Kaufmann,%20Robert%20K.มีปัญหาในการเชื่อมต่อ/Connection Problems (open url)