ERWIN J CHAPLIN. The Analisa Biaya Operasional Alat Berat Pada Pekerjaan Timbunan. Jurnal Ilmiah Teknik Unida, [S. l.], v. 3, n. 1, p. 42–48, 2022. DOI: 10.55616/jitu.v3i1.212. Disponível em: https://ejournal.unida-aceh.ac.id/jitu/article/view/212. Acesso em: 22 jul. 2026.