Ermawati, D., P. Z. Cahyani, I. Shahnaz, A. Juniarty, C. L. Mahardhika, and U. Chasanah. “Formulation of Serum Using a Combination of Tamanu Oil and Tea Tree Oil As Antiacne”. Jurnal Kefarmasian Indonesia, vol. 13, no. 2, Aug. 2023, pp. 150-8, https://mail.jkefarind.com/index.php/jki/article/view/6570.