1. Anaperta, Y. M. (2016). Evaluasi Keserasian (Match Factor) Alat Muat dan Alat Angkut dengan Metode Control Chart (Peta Kendali) pada Aktivitas Penambangan di Pit X PT Y. Jurnal Teknologi Informasi & Pendidikan.
2. Ardian, A., & Kumral, M. (2018). Dynamic Discount Rate Thorugh Ornstein-Uhlenbeck Process for Mining Project Valuation. IOP Conference Series: Earth and Enviromental Science.
3. Aryoseno, & Ahyudanari, E. (2019). Criteria Analysis in The Selection Method of Mud Pumping in Coal Mining Project. IOP Conference Series: Materials Science and Engineering.
4. Endriantho, M., Prabudi, A., & Ardiansyah, P. Z. (2019). Perencanaan In Pit Dump (IPD) Pit D2 untuk Opportunity Reduce Distance dan Mitigasi dari Bahaya Geoteknik Blok 1-4 Binungan Mine Operation 1 - PT. Berau Coal. Prosiding TPT XXVIII Perhapi.
5. Fernando, J. (2022, August). Financial Ratios Explained with Formula and Examples. Retrieved from Investopedia: https://www.investopedia.com/
6. Gitman, L., & Zutter, C. (2010). Principles of Managerrial Finance 13th edition. The Prentice Hall Series in Finance.
7. Lee, H. (2018). The Economic Feasibility Study on Development of Coal Mine Using Real Options. International Journal of Mining, Materials and Metallurgical Engineering.
8. Nursecha, M. A., Saputra, P. H., Adhi Y., T., & L. C. (2020). Penggunaan Slurry Pump untuk Mengangkut Lumpur Sump Pit C1 di Area Kerja PT. PamaPersada Nusantara Site Binungan Blok 8, Konsesi PT. Berau Coal. Prosidung TPT XXXIX Perhapi.
9. Papaspiropoulos, A., & Demetriou, C. (2020). Coal Facts: Discover Coal's Contribution. Retrieved from World Coal Asociation: https://www.worldcoal.org/coal-facts/
10. PT. Berau Coal. (2022). Sales Overview PT. Berau Coal. East Kalimantan: PT. Berau Coal.
11. Shafiee, S., Nehring, M., & Topal, E. (2009). Estimating Average Total Cost of Open Pit Coal Mines in Australia. Australian Mining Technology Conference.