Lumbanraja, Penny Chariti, and Pretty Luci Lumbanraja. 2024. “Tinjauan Sistematis : Transformasi Pelayanan Metrologi Di Era Digital (Metrologi Digital4.0)”. Cendekia Niaga 8 (2):119-33. https://jurnal.kemendag.go.id/index.php/JCN/article/view/912.