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2Được phát hành 2011Available for University of the Philippines System via Science Direct. Also available remotely thru Open Athens:
Electronic Resource -
3Được phát hành 2010Available for University of the Philippines System via Science Direct. Also available remotely thru Open Athens:
Electronic Resource -
4Được phát hành 2004Available for University of the Philippines System via Science Direct. Also available remotely thru Open Athens:
Electronic Resource