KAMILA, T. F.; FINTANI, P. S. Analisis Portofolio Dan Risiko Lingkungan Investasi Galian Batu Manual Tanah Bengkok Desa Sikasur Berdasarkan Etika Syariah Serta Pertimbangan Sharia Screening. RIGGS: Journal of Artificial Intelligence and Digital Business, [S. l.], v. 4, n. 4, p. 12048–12055, 2026. DOI: 10.31004/riggs.v4i4.5392. Disponível em: https://journal.ilmudata.co.id/index.php/RIGGS/article/view/5392. Acesso em: 1 feb. 2026.