Associate Professor at the Department of Mining Engineering and Education, PhD.

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     Associate Professor at the Department of Mining Engineering and Education, PhD.

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      Associate Professor at the Department of Mining Engineering and Education, PhD.

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    Associate Professor at the Department of Mining Engineering and Education, Ph.D.

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     Associate Professor at the Department of Mining Engineering and Education, PhD.

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    Associate Professor at the Department of Mining Engineering and Education, PhD.

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   Associate Professor at the Department of Mining Engineering and Education, PhD.

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    Associate Professor at the Department of Mining Engineering and Education, PhD.

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    Associate Professor at the Department of Mining Engineering and Education, PhD.

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   Associate professor of the Mining Department, PhD.

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   Associate Professor at the Department of Mining Engineering and Education, PhD.

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    Associate Professor at the Department of Mining Engineering and Education, PhD.

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   Associate Professor at the Department of Mining Engineering and Education, PhD.

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     Associate Professor at the Department of Mining Engineering and Education, PhD.

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