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Research on environmental improvement and restoration in open-pit coal mining activities at the intersection mine of Quang Hanh Coal One Member Limited Liability Company - Vinacomin, Cam Pha city, Quang Ninh province - 12

REFERENCES I. Vietnamese documents : 1. Open Encyclopedia (2013), Open Pit Mining , vi.wikipedia.org/wiki/Open_pit_mining (August 23, 2013). 2. Open Encyclopedia (2013), Mining , vi.wikipedia.org/wiki/Mining (November 11, 2013). 3. Quang Hanh Coal Company Limited - Vinacomin (2011), Environmental ...

Subjects and Methods of Qualitative Research

A preliminary quantitative study was conducted to assess the reliability and validity of the designed and adjusted scales to suit the conditions in Vietnam. The thesis used a preliminary questionnaire for 100 samples, selected by random sampling method and conducted in March 2017. The official ...

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