Wulandari N, Erfiani E, Irzaman I, Syafitri U. G-OPTIMAL DESIGN OF NON-LINEAR MODEL TO INCREASE PURITY LEVELS OF SILICON DIOXIDE. BAREKENG: J. Math. & App. [Internet]. 11Jun.2023 [cited 23Jul.2024];17(2):0659-66. Available from: https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/6950