Praktik kerja di PT SamMarie Tramedifa periode 5-16 Desember 2022, modifikasi prosedur operasional baku (POB) terkait penanganan penyimpanan cadangan untuk cold chain product (CCP) di PT SamMarie Tramedifa = Work practice at PT SamMarie Tramedifa for the period of 5–16 December 2022, modification of standard operating procedures (SOP) related to handling of backup storage for cold chain product (CCP) at PT SamMarie Tramedifa