Syukri, Daimon, Rini Rini, and Adhitya Jessica. “Optimization of Cathechin Extraction for Development of Liquid Hand Soap Made From Gambier”. Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) 4, no. 01 (October 1, 2024): 31-36. Accessed November 20, 2024. http://103.151.89.32/index.php/aijans/article/view/47.