M. H. Panjaitan and C. Apriono, “Valuation of 5G mmWave Fixed Wireless Access in Residence Area: Analysis of Real Option for Wireless Broadband Service in Kota Wisata Cibubur Using Decision Tree and Black Scholes Model”, J. Ilm. Tek. Elektro Komput. Dan Inform, vol. 8, no. 2, pp. 226–234, Jun. 2022.