Alimuddin, A. F. and hendrawan, R. (2023) “Optimal Stock Portfolio Establishment with Active and Passive Strategy Using Price to Book Value and Price Earning to Growth Ratio Approach in IDX30 Index 2013-2018 Period”, Devotion : Journal of Research and Community Service, 4(9), pp. 1770–1785. doi: 10.59188/devotion.v4i9.559.