Talakua, Mozart, and Stenly Nanuru. “TEOREMA REPRESENTASI RIESZ–FRECHET PADA RUANG HILBERT”. BAREKENG: Jurnal Ilmu Matematika dan Terapan 5, no. 2 (December 1, 2011): 1-8. Accessed November 22, 2024. https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/187.