“Analisis Investasi Rumah Tinggal 2 Lantai Proyek Berdasarkan Metode NPV, IRR, BCR dan Cash Flow”, JSE, vol. 2, no. 1, pp. 30–36, May 2026, Accessed: May 13, 2026. [Online]. Available: https://journal.ajbnews.com/index.php/prothon/article/view/307