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000 100 200 300 400 500 600 700 800 900 [ สังคมศาสตร์ (Social Sciences) ] back |
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300 310 320 330 340 350 360 370 380 390 [ การพาณิชย์ การสื่อสาร การขนส่ง (Commerce, Communications, Transport) ] |
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380 381 382 383 384 385 386 387 388 389 [ Postal communication ] |
| DC | คำอธิบาย | ||||||||
| 1 | Postal communication | ||||||||
| 2 | Communications & transportation HE HE Transportation and communications | ||||||||
| 3 | Secondary industries and services | ||||||||
| 4 | General production economics | ||||||||
| 5 | Organization of production | ||||||||
| 6 | Business enterprises and their structure | ||||||||
| 7 | Combinations, trusts | ||||||||
| 8 | Economic development and growth | ||||||||
| [แสดง 8/8 รายการ] | |||||||||