sugarindra muchammad. The Overall Labor Effectiveness (OLE) Method for Analyzing Employee Performance in the Musical Instrument Industry: Overall Labor Effectiveness (OLE) Method for Analyzing Employee Performance in the Musical Instrument Industry. JIEHIS [Internet]. 2024 Dec. 31 [cited 2025 Jul. 14];5(2):32-40. Available from: https://journal.uin-suka.ac.id/saintek/JIEHIS/article/view/4968