SIDIQ, H.; MUKARROM, F. PENILAIAN KELAYAKAN EKONOMI INVESTASI PERALATAN TAMBANG MENGGUNAKAN METODE INCREMENTAL COST (STUDI KASUS: EXCAVATOR DOOSAN DX 340 LC-5). KURVATEK, [S. l.], v. 4, n. 1, p. 89–93, 2019. DOI: 10.33579/krvtk.v4i1.1118. Disponível em: https://journal.itny.ac.id/index.php/krvtk/article/view/1118. Acesso em: 3 apr. 2025.