Elvan Ender and  Murat Zencirkıran,  Researches on Attractive Flowered Natural Woody Plants of Bursa Flora in Terms of Landscape Design.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2017, vol. 127(7). 668 - 673
    [viewed 26 January 2020]. Available from: https://publications.waset.org/pdf/10007665.