Iqbal MF, Ratminah WD. NERACA SERTA POTENSI SUMBERDAYA BATU ANDESIT DI KOTA SINGKAWANG PROVINSI KALIMANTAN BARAT. Prosiding Seminar Nasional ReTII [Internet]. 2018Nov.26 [cited 2024Dec.5];. Available from: //journal.itny.ac.id/index.php/ReTII/article/view/972