Marisa Oktavia; Putra, E. T.; Oswara, R. M. Estimasi Rata- Rata Tingkat Pengembalian Modal Berdasarkan Biaya Eksplorasi Terhadap Harga Jual Batubara Di PT. Andalas Nusa Indah Kabupaten Bungo , Provinsi Jambi: Average Rate Estimation of Return on Capital Based on Exploration Costs on Coal Selling Price at PT. Andalas Nusa Indah Bungo District, Jambi Province. JTK 2024, 10, 51-55.