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            1Mining machines and earth-moving equipment problems of design, research and maintenance出版事項 2020Available for University of the Philippines Diliman via SpringerLink. Click here to access
 Also available remotely for University of the Philippines Diliman via SpringerLink. Click here to access thru EZproxy
 Electronic Resource
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            2Surface mining machines problems of maintenance and modernization出版事項 2017Available for University of the Philippines Diliman via SpringerLink. Click here to access
 Also available remotely for University of the Philippines Diliman via SpringerLink. Click here to access thru EZproxy
 Electronic Resource
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