A. J. Firmansya and P. Amelia, “Strategic IS/IT Planning for Enhanced Competitiveness and Operational Efficiency at PT. Songgo Jati Baru: Applying the Ward and Peppard Method”, journalisi, vol. 7, no. 2, pp. 1461–1475, Jun. 2025, doi: 10.51519/journalisi.v7i2.1105.