Saryanti, D. et al. 2022. Use of CMC Na as Gelling Agent in Nanoemulgel Formulation of Methanol Extract of Sappan Wood (Caesalpinia sappan L). Journal of Tropical Pharmacy and Chemistry. 6, 1 (Jun. 2022), 21–29. DOI:https://doi.org/10.25026/jtpc.v6i1.276.