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Ester Kalangi MH, Kristiawati I, Ega Kusuma RA. Impact of Work Skills, Performance, and Maintenance on Productivity: A Study on Head Truck Operators in PT. Terminal Petikemas Surabaya: Pengaruh Keterampilan Kerja, Kinerja, dan Pemeliharaan terhadap Produktivitas: Studi pada Operator Head Truck di PT. Terminal Petikemas Surabaya. acopen [Internet]. 2023 Jul. 5 [cited 2025 Oct. 13];8(1):10.21070/acopen.8.2023.6664. Available from: https://acopen.umsida.ac.id/index.php/acopen/article/view/6664