WASET
    T. B. Karu Jayasundara,  The Gravitational Impact of the Sun and the Moon on Heavy Mineral Deposits and Dust Particles in Low Gravity Regions of the Earth.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2019, vol. 155(11). 624 - 629
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10010861.