Haryadi, Rendra, Marlina Widiyanti, Muchsin Saggaf Shihab, and Ahmad Maulana. 2024. “The Effect of Product Quality on Coal Purchase Interest through Sales-Based Non-KAI Logistics at PT Bukit Asam, TBK”. International Journal of Business, Economics and Management 7 (4):168-75. https://doi.org/10.21744/ijbem.v7n4.2326.