Pongnimitprasert, N., K. Wadkhien, C. Chinpaisal, M. Satiraphan, and P. Wetwitayaklung. “Anti-inflammatory effects of rhein and crude extracts from Cassia alata L. in HaCaT cells”. Science, Engineering and Health Studies, vol. 12, no. 1, Apr. 2018, pp. 19-32, doi:10.14456/sehs.2018.3.