Panggabean, Edward, Ronny Hasudungan Purba, Klariza Luthfi Damara, Taufik Ramadhani, and Mustakim. “Analisa Kelayakan Quarry Material Batu Terhadap Proyek Pemerintah Kota Bandar Lampung”. Jurnal Ilmu Multidisiplin 5, no. 1 (April 26, 2026): 418–423. Accessed April 30, 2026. https://greenpub.org/JIM/article/view/1887.