Essi Laura Amanda, Sarah Desnita Manihuruk, Lidya Vanya F. Sihombing, Gebatania Pakpahan, Rouli P. Simanjuntak, and Nasrullah Hidayat. “Analisis Kelayakan Finansial Investasi Usaha Laundry: Pendekatan NPV, IRR, Dan Payback Period: Penelitian”. Jurnal Pengabdian Masyarakat dan Riset Pendidikan 5, no. 2 (October 28, 2026): 4892–4902. Accessed October 28, 2026. https://jerkin.org/index.php/jerkin/article/view/8157.