EBSCOhost
World Bank
EconBiz
De Gruyter
OpenEdition
European Respiratory Journal
Mathematical Sciences Publishers Journals
Edward Elgar Publishing UN iLibrary HeinOnline Directory of Open Access Books SAGE Journals ASTM Compass
Class number details
320.5509
320 320.01 320.0109 320.011 320.014 320.0285 320.03 320.0321 320.05 320.0710 320.072 320.08 320.09 320.1 320.101 320.1092 320.1094 320.11 320.15 320.17 320.170 320.1702 320.21 320.23 320.2309 320.3 320.4 320.4049 320.409 320.4094 320.430 320.4404 320.443 320.4430 320.471 320.473 320.4965 320.497 320.5 320.5090 320.5092 320.51 320.513 320.5130 320.52 320.53 320.5309 320.54 320.5409 320.557 320.5662 320.6 320.605 320.6094 320.6097 320.6098 320.8 320.801 320.8096 320.838 320.9 320.9051 320.9385 320.94 320.9409 320.941 320.943 320.9430 320.9440 320.947 320.9470 320.949 320.9494 320.9496 320.9497 320.95 320.9561 320.973 320.98 
