Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:236446 |
Date | January 1989 |
Creators | Yang, Yiya |
Publisher | Heriot-Watt University |
Source Sets | Ethos UK |
Detected Language | English |
Type | Electronic Thesis or Dissertation |
Source | http://hdl.handle.net/10399/920 |
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