Mojtaba Heydarizad,  Geology, Geomorphology and Genesis of Andarokh Karstic Cave, North-East Iran.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2018, vol. 136(4). 318 - 322
    [viewed 19 November 2019]. Available from: https://publications.waset.org/pdf/10008808.