SALEH, Dean Subhan. Studi Kelayakan Bisnis Penambangan Batu Belah dan Batu Pipih Di Cilegon Banten. Eqien - Jurnal Ekonomi dan Bisnis, [S. l.], v. 1, n. 2, p. 28–40, 2018. DOI: 10.34308/eqien.v1i2.4. Disponível em: http://stiemuttaqien.ac.id/ojs/index.php/OJS/article/view/4. Acesso em: 26 jul. 2025.