Estu Chaerul Umam, NIM.: 22108010037 (2026) DETERMINANTS OF PROFITABILITY IN SELECTED ENERGY SECTOR FIRMS OF RCEP MEMBER ECONOMIES: EVIDENCE FROM ENERGY INTENSITY, CARBON EMISSION INTENSITY, LEVERAGE, GDP GROWTH, AND INFLATION (2019-2025). Skripsi thesis, UIN SUNAN KALIJAGA YOGYAKARTA.