Christine O. Wangia and Jennifer A. Orwa and Francis W. Muregi and Patrick G. Kareru and Kipyegon Cheruiyot and Eric Guantai, Quantitative and Fourier Transform Infrared Analysis of Saponins from Three Kenyan Ruellia Species: Ruellia prostrata, Ruellia lineari-bracteolata and Ruellia bignoniiflora . journal = {International Journal of Biological and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology. May 2018, vol. 138(6). 155 - 159 [viewed 26 September 2024]. Available from: https://publications.waset.org/pdf/10009093.