ABDILLAH KHAKIM; DWI EKO WALUYO. Optimal Portfolio Analysis of Cross-Sector Stocks on the Indonesia Stock Exchange (IDX). Proceeding of the International Conference on Management, Entrepreneurship, and Business, [S. l.], v. 2, n. 2, p. 508–520, 2025. DOI: 10.61132/icmeb.v2i2.311. Disponível em: https://prosiding.arimbi.or.id/index.php/ICMEB/article/view/311. Acesso em: 19 jan. 2026.