Malse Anggia, Ruri Wijayanti, and Ariyetti. “APPLICATION OF ARECA NUT EXTRACT AS A NATURAL COLORANT IN THE PROCESS OF IN ECO-FRIENDLY SOAP MAKING”. JURNAL KATALISATOR 9, no. 1 (June 4, 2024): 110–120. Accessed November 28, 2024. http://291726.ochkinterhk.tech/index.php/katalisator/article/view/2914.