Sharifuddin, Nur Amirah Khadijah, et al. “Alginate Chitosan Amine-Functionalized Silica-Coated As an Adsorbent for Magnetic Micro Solid-Phase Extraction of Pyrocatechol in Coffee Sample”. Journal of Materials in Life Sciences (JOMALISC), vol. 4, no. 1, May 2025, pp. 63-68, https://jomalisc.utm.my/index.php/jomalisc/article/view/89.