Analysis of operating costs in small-scale mining and artisanal mining in Nambija
In the development of the mining activity in small mining and artisanal mining in Ecuadorian in several cases a record of the services performed is not carried out of investment in contrast with the economic recovery achieved. The objective of this work has focused on the services in each task in th...
محفوظ في:
المؤلف الرئيسي: | |
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مؤلفون آخرون: | |
التنسيق: | article |
اللغة: | spa |
منشور في: |
2020
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الموضوعات: | |
الوصول للمادة أونلاين: | https://revistadigital.uce.edu.ec/index.php/RevFIG/article/view/2568 |
الوسوم: |
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