Tirta Raharja, Mulya. 2026. “THE EFFECT OF UNIT RATE AND FINANCIAL PRODUCTIVITY IN EXPLAINING PRODUCTION COST EFFICIENCY”. SIBATIK JOURNAL: Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan 5 (6):2902-14. https://doi.org/10.47353/sibatik.v5i6.4870.