Wulandari, Nindya, Erfiani Erfiani, Irzaman Irzaman, and Utami Syafitri. 2023. “G-OPTIMAL DESIGN OF NON-LINEAR MODEL TO INCREASE PURITY LEVELS OF SILICON DIOXIDE”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan 17 (2), 0659-66. https://doi.org/10.30598/barekengvol17iss2pp0659-0666.