2025. TRANSMISSION SYSTEM PROTOTYPE AS SPEED OPTIMIZATION IN THE POWER DRIVE MECHANISM OF THE MAKER S4000 MACHINE AT PT DM. Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin. 15, 3 (Nov. 2025), 141–150. DOI:https://doi.org/10.35814/gws9wp29.