D. Kusuma, Almira, Adaro Indonesia (Indonesia)
Dante, Gregorius, Mine Operation-Support Dept., PT Berau Coal (Indonesia)
Darma Kusuma, I Nyoman, Mine Optimisation Department, Mining Operation Division, PT. Kaltim Prima Coal (Indonesia)
Delya, Vina, Prodi Pengelolaan Sumber Daya Alam dan Lingkungan Universitas Lambung Mangkurat (Indonesia)
Devy, Shalaho Dina, Mining Engineering Department, Mulawarman University Samarinda (Indonesia)
Dwinagara, Barlian, Jurusan Teknik Pertambangan, Universitas Pembangunan Nasional ”Veteran” Yogyakarta
Dzakir, La Ode, Universitas Sembilanbelas November Kolaka

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