Hidayatulloh, N.M. and Sukmono, T. 2021. Determination of Production Instrumentation Equipment Maintenance Intervals In the Paper Industry: Penentuan Interval Perawatan Peralatan Instrumentasi Produksi Pada Industri Kertas. PROZIMA (Productivity, Optimization and Manufacturing System Engineering). 4, 1 (Mar. 2021), 23–31. DOI:https://doi.org/10.21070/prozima.v4i1.1275.