IQBAL, M. F.; RATMINAH, W. D. NERACA SERTA POTENSI SUMBERDAYA BATU ANDESIT DI KOTA SINGKAWANG PROVINSI KALIMANTAN BARAT. ReTII, [S. l.], 2018. Disponível em: https://journal.itny.ac.id/index.php/ReTII/article/view/972. Acesso em: 16 apr. 2025.