Syahprya, Widya Dwi, Nur Ahmadi Bi Rahmani, and Nurwani. 2026. “Optimizing the Production Cost Budget As an Instrument for Planning and Cost Control at PT. Perkebunan Nusantara IV Kebun Panai Jaya”. Al-Kharaj: Journal of Islamic Economic and Business 8 (1). https://doi.org/10.24256/kharaj.v8i1.9297.