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Modified 28 January 2019

Perencanaan

Modified 28 January 2019

Pengawasan

Modified 28 January 2019

Manajemen Operasi

Modified 28 January 2019

Monitoring

Modified 28 January 2019

Evaluating

Modified 14 May 2020

Exploration

Modified 14 May 2020

Mining

Modified 14 May 2020

Metallurgy

Modified 14 May 2020

Maintenance

Modified 14 May 2020

HSE