Visualisasi Efektifitas Mesin Cetak JCMCO-51, JCMCO-39 dan STV-51 menggunakan Parameter Overall Equipment Effectiveness pada Bulan Juni 2022 di PT. Guardian Pharmatama = Visualization of the Effectiveness of JCMCO-51, JCMCO- 39, and STV-51 Tabletting Machines using Overall Equipment Effectiveness Parameters in June 2022 at PT. Guardian Pharmatama