WASET
    Ploysai Ohama and  Nattida Tumpat,  Textile Dyeing with Natural Dye from Sappan Tree (Caesalpinia sappan Linn.) Extract.   journal   = {International Journal of Materials and Textile Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2014, vol. 89(5). 432 - 434
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/9998325.