MANURUNG, Prof. Adler Haymans; MANURUNG, Amran; MACHDAR, Nera Marinda; SIJABAT, Jadongan. STOCK SELECTION USING SEMI-VARIANCE AND BETA TO CONSTRUCT PORTFOLIO AND EFFECT MACRO-VARIABLE ON PORTFOLIO RETURN. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 15, n. 1, p. 14–25, 2024. DOI: 10.61841/turcomat.v15i1.14350. Disponível em: https://www.turcomat.org/index.php/turkbilmat/article/view/14350. Acesso em: 24 nov. 2025.