ANASTASIA PUTRI, Juan; SUSANTI, Elly; TRIDIANTY SIANIPAR, Ruth. Analysis Of Idx 30 Stock Portfolio Performance During Covid 19 Pandemic. International Journal of Science, Technology & Management, [S. l.], v. 3, n. 6, p. 1606–1613, 2022. DOI: 10.46729/ijstm.v3i6.689. Disponível em: https://ijstm.inarah.co.id/index.php/ijstm/article/view/689. Acesso em: 24 mar. 2026.