Haida, Zainol, Sharin Ab Ghani, and Mansor Hakiman. “Extraction Variables Optimization on Phenolics Content and Antioxidant Activities of in-Vitro Propagated Leaves of Curcuma Caesia Roxb. Using Response Surface Methodology”. BioResources 20, no. 2 (April 29, 2025): 4590–4607. Accessed October 15, 2025. https://ojs.bioresources.com/index.php/BRJ/article/view/24608.