Sirang SV, Anindita PS, Juliatri . Pengaruh kopi arabika terhadap perubahan warna resin komposit hybrid. eG [Internet]. 2017 Jan. 18 [cited 2024 May 3];5(1). Available from: https://ejournal.unsrat.ac.id/v3/index.php/egigi/article/view/15294