Alfairus, M.Q., Mubaraq, M.R. and Amalia, A.R. 2026. Robust Panel Data Regression Model of Standard Error in Firm Size, Leverage, and Profitability on Firm Value (Case Study: The Indonesian Mining Sector, 2022–2024, Listed on the Indonesia Stock Exchange). VARIANSI: Journal of Statistics and Its application on Teaching and Research. 8, 1 (Apr. 2026), 104-115. DOI:https://doi.org/10.35580/variansiunm515.