Perbandingan portofolio optimal menggunakan seleksi graham dengan portofolio optimal markowitz terhadap saham-saham LQ45 di Bursa Efek Indonesia = Comparison of optimal portfolio using graham selection with optimal portfolio markowitz on LQ45-Shares in Indonesia Stock Exchange - Dwipa Nugraha, author (Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2010)