RAMADHANA, R. R.; PRAYITNO, Y. A. K.; IRFAN BAHIUDDIN; SETYAWAN BEKTI WIBOWO; SUGIYANTO. System Integration (ISO 50001) with Chi-Square Test Combination for Heavy Equipment Operational Energy Use Management Analysis at Port Terminal Company. Jurnal Teknologi dan Rekayasa Alat Berat, v. 2, n. 2, p. 28-34, 11 Aug. 2025.