Annisa Y, Cahyaningrum S. Toothpaste Gel Preparation from Composite of Hydroxyapatite-Chitosan-Green Betel Leaf (Piper Batle L.) Extract. ijcs [Internet]. 1Aug.2022 [cited 23Nov.2024];11(2):114-22. Available from: https://journal.unnes.ac.id/sju/ijcs/article/view/54583