S. H. . Suhaimi, R. . Hasham @Hisam, and N. A. . Rosli, “Effects of Formulation Parameters on Particle Size and Polydispersity Index of Orthosiphon Stamineus Loaded Nanostructured Lipid Carrier ”, J. Adv. Res. App. Sc. Eng. Tech., vol. 1, no. 1, pp. 36–39, Dec. 2020.