Ika Kusumanisita, A., and F. H. Minanti. “Stock Valuation Analysis of Dividend Discount Model, Free Cash Flow to Equity and Walter Model in Investment Decision”. Agregat: Jurnal Ekonomi Dan Bisnis, vol. 5, no. 1, Mar. 2021, pp. 78-96, https://journal.uhamka.ac.id/index.php/agregat/article/view/6832.