Radius, R., and S. Sriwati. “ Business Valuation Analysis Using the Discounted Cash Flow (DCF) and Price to Earnings Ratio (PER) Methods: Case Study on Telecommunication Subsector Companies Listed on Indonesia Stock Exchange (IDX)”. Quantitative Economics and Management Studies, Vol. 6, no. 3, June 2025, pp. 483-91, doi:10.35877/454RI.qems3970.