Malse Anggia, Ruri Wijayanti, Ariyetti. APPLICATION OF ARECA NUT EXTRACT AS A NATURAL COLORANT IN THE PROCESS OF IN ECO-FRIENDLY SOAP MAKING. katalisator [Internet]. 2024 Jun. 4 [cited 2024 Jul. 3];9(1):110-2. Available from: http://publikasi.lldikti10.id/index.php/katalisator/article/view/2914