Septiawan, Dimas, Agus Suwarno, and Annisa Syahliantina. 2026. “Perencanaan Perawatan Preventive Dan Corrective Maintenance Sistem Pelumasan Excavator Caterpillar 305.5E2 Beserta Estimasi Biaya Periode 2024–2026”. RIGGS: Journal of Artificial Intelligence and Digital Business 5 (2):12234-41. https://doi.org/10.31004/riggs.v5i2.10607.