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Singgih Saptono
Departement of Mining Engineering, UPN Veteran Yogyakarta
M. Rahman Yulianto
Departement of Mining Engineering, UPN Veteran Yogyakarta
Vega Vergiagara
Departement of Mining Engineering, UPN Veteran Yogyakarta
Herry Sofyan
Departement of Informatics, UPN Veteran Yogyakarta