Sibuea, Herman Arbie, and Jonathan Nahum Marpaung. “Forecasting Office Vacancy Using Employment Indicators: A Case of the Singapore Market”. Benefit: Jurnal Manajemen dan Bisnis 11, no. 1 (June 6, 2026): 1–18. Accessed September 27, 2026. https://journals2.ums.ac.id/benefit/article/view/17750.