Pratiwi DI, Nurcholis M. CHEMICAL PROPERTIES OF SOIL IN QUARTZ SAND MINING IN RIAU ISLANDS PRE-RECLAMATION ACTIVITIES: SIFAT KIMIA TANAH PADA TAMBANG PASIR KUARSA DALAM KEGIATAN PRA REKLAMASI KEPULAUAN RIAU . Program Studi S1 Teknik Pertambangan Universitas Papua [Internet]. 2023 May 29 [cited 2026 May 24];6(1):29-37. Available from: https://jurnal-intan.ac.id/index.php/intan/article/view/171