FERNANDEZ, Aloysius Joakim. TEOREMA TITIK TETAP MENJAMIN EKSISTENSI MASALAH NILAI AWAL. Jurnal Saintika Unpam : Jurnal Sains dan Matematika Unpam, [S. l.], v. 4, n. 2, p. 147–162, 2022. DOI: 10.32493/jsmu.v4i2.10749. Disponível em: https://openjournal.unpam.ac.id/index.php/jsmu/article/view/10749. Acesso em: 13 jan. 2026.