Sibuea, Herman Arbie, and Jonathan Nahum Marpaung. “Demand Signals for Capacity Planning: Using Employment Indicators to Forecast Office Vacancy in Singapore”. Benefit: Jurnal Manajemen dan Bisnis 11, no. 1 (June 6, 2026): 1–18. Accessed July 27, 2026. https://journals2.ums.ac.id/benefit/article/view/17750.