AMINAH, Siti. Markowitz Model for Forming an Optimum Stocks Portfolio in The January Effect. International Student Conference on Business, Education, Economics, Accounting, and Management (ISC-BEAM), [S. l.], v. 3, n. 1, p. 61–74, 2025. DOI: 10.21009/ISC-BEAM.013.05. Disponível em: https://journal.unj.ac.id/unj/index.php/isc-beam/article/view/51761. Acesso em: 18 jan. 2026.