Pradip Kumar Das,  An Introduction to the Concept of Environmental Audit: Indian Context.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2017, vol. 129(9). 2227 - 2234
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10007811.