APA Style

Nelmida, . et al (2021). The Portofolio Optimal Using Markowitz Model During COvid-19 On Banking Companies . Jakarta: Pusat Penelitian dan Pengabdian Masyarakat, STIE Indonesia Banking School.

MLA Style

Nelmida, . et al. "The Portofolio Optimal Using Markowitz Model During COvid-19 On Banking Companies". Jakarta: Pusat Penelitian dan Pengabdian Masyarakat, STIE Indonesia Banking School, 2021. Text.