UMAR, Ridwan Hasyim; AMIRUDIN, Zidan. The Application of Mathematical Analysis in Investment Planning. Operations Research: International Conference Series, [S. l.], v. 5, n. 1, p. 27–31, 2024. DOI: 10.47194/orics.v5i1.293. Disponível em: https://www.iorajournal.org/index.php/Orics/article/view/293. Acesso em: 14 jan. 2026.