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3Veröffentlicht 2012This was first heard live on air at DZUP 1602 AM. Podcast uploaded at iskwiki. Click to listen
Electronic Resource -
4von Tausig, MarkAvailable for University of the Philippines Diliman via SpringerLink. Click here to access
Veröffentlicht 2011
Electronic Resource -
5Veröffentlicht 2009Available for University of the Philippines Diliman via Wiley Online Library. Click here to access
Electronic Resource -
6von Claude, Lilia HernandezFull text access requires UP Webmail login
Veröffentlicht 2003
Electronic Resource