Gaya APA
      Tyas, S, A. et al (2025).
    Optimal Stock Portfolio: Markowitz Model Case Study on Companies Listed in IDX BUMN20 for The Year 2022-2024 = Optimal Stock Portfolio: Markowitz Model Case Study on Companies Listed in IDX BUMN20 for The Year 2022-2024 .
    Semarang:
  Politeknik Negeri Semarang.
  
Gaya MLA
      Tyas, Sherlyta, Ayuning. et al.
    "Optimal Stock Portfolio: Markowitz Model Case Study on Companies Listed in IDX BUMN20 for The Year 2022-2024 = Optimal Stock Portfolio: Markowitz Model Case Study on Companies Listed in IDX BUMN20 for The Year 2022-2024".
    
    Semarang:
  Politeknik Negeri Semarang,
  2025.
  SKRIPSI DIGITAL.