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21per Kracht, MarcusAvailable for University of the Philippines Diliman via SpringerLink. Click here to access
Publicat 2011
Electronic Resource -
22
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23
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24
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25per Hayes, BruceAvailable for University of the Philippines System via Vital Source Online.
Publicat 2011
Electronic Resource -
26per Whong, MelindaAvailable for University of the Philippines System via IG Library. Click here to access
Publicat 2011
Electronic Resource -
27
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28
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29per Whong, MelindaAvailable for University of the Philippines System via IG Library. Click here to access
Publicat 2011
Electronic Resource -
30Publicat 2010Available for University of the Philippines System via Oxford Scholarship Online. Click here to access
Electronic Resource