The Preventive Maintenance Analysis of Tea Processing Machinery in Small-Scale Tea Industries: Analisis Perawatan Preventif pada Mesin Pengolahan Teh Skala Industri Kecil. PELS [Internet]. 2026 Oct. 17 [cited 2026 Oct. 24];10(1):788-93. Available from: https://pels.umsida.ac.id/index.php/PELS/article/view/2911