“SOL-GEL (3-MERCAPTOPROPYL)TRIMETHOXYSILANE-METHYLTRIMETHOXYSILANE AS ADSORBENT FOR STIR BAR SORPTIVE EXTRACTION OF SELECTED ORGANIC DYES”. Jurnal Teknologi 78, no. 3-2 (March 9, 2016). Accessed July 23, 2024. https://journals.utm.my/jurnalteknologi/article/view/7809.