Rimos, Pherto, PT ANTAM Tbk, Geomin – Unit Explorasi, Jakarta, Indonesia
Rinaldi, Ardi, Teknik Pertambangan Universitas Sriwijaya
Riyandi, Irsa, Dispatch Superintendent, PT Bukit Makmur Mandiri Utama
Rizkita, Niki Rahma, PT Antam Tbk Unit Geomin – Exploration Unit
Rizkita, Niki Rahma, PT. ANTAM Tbk., Unit Geomin & Technology Development
Romi, Ahmad Zaki, Evalusi dan Optimasi, Penambangan Swakelola, PT. Bukit Asam, Tbk
Rosaria, Maria Christine, Geotechnical Support Service, GroundProbe Indonesia
Rosyid, Fadhila A, Kelompok Keahlian Teknik Pertambangan, FTTM-ITB
Rosyid, Fadhila Achmadi, Fakultas Pertambangan dan Perminyakan, Institut Teknologi Bandung Centre of Research Excellence Policy and Economics of Minerals & Coal
Rosyid, Fadhila Achmadi, Kelompok Keahlian Teknik Pertambangan FTTM-ITB
Ruben A., Sahala, Mine Technical Services Department, PT. Amman Mineral Nusa Tenggara
Rudianto, Supris, Coal Preparation Plant Operation Department, PT. Kaltim Prima Coal
Rudolf, Rudolf, PT Agincourt Resources
Rumapea, Monika Pasuria, Prodi Teknik Metalurgi, Institut Teknologi Bandung
Rumbewas, Jeffryson Munsaki, Departemen Underground Mine GBC, PT. Freeport Indonesia,

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