Wawolumaja, R., S. Santoso, W. Halim, and V. Carolina. “Analisis Penerapan Metode ‘Non-Value Added Activity Ellimination (Novaceli)’ Pada Organisasi Nir Laba Di Lingkungan GKI”. Journal of Integrated System, vol. 4, no. 2, Dec. 2021, pp. 168-80, doi:10.28932/jis.v4i2.3538.