Manurung, Prof. Adler Haymans, Amran Manurung, Nera Marinda Machdar, and Jadongan Sijabat. 2024. “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) 15 (1):14-25. https://doi.org/10.61841/turcomat.v15i1.14350.