Items where Author is "Sonia Ayu, Ningsih"
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Saptawartono, Saptawartono and Ferra, Murati and Tiya, Rianti and Sonia Ayu, Ningsih and Obed Marune R., Simanullang and Hanifah Shinta, Nuriyah and Desra Prihel, Sinuhaji and Nornela, Sofika (2023) Audit Sistem Manajemen Keselamatan Pertambangan (SMKP) mineral dan batubara. JTP (Jurnal Teknik Pertambangan), 23 (1): 4. pp. 24-29. ISSN 2087-1058