Kassakul, Waruttaya, et al. “CHARACTERIZATION OF THE MUCILAGES EXTRACTED FROM HIBISCUS ROSA-SINENSIS LINN AND HIBISCUS MUTABILIS LINN AND THEIR SKIN MOISTURIZING EFFECT”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 6, no. 11, Nov. 2014, pp. 453-7, https://www.journals.innovareacademics.in/index.php/ijpps/article/view/3319.