Hussain H. Al-Kayiem and  Ahmed K. Hussein and  Toh Seng Peow,  Investigations of Natural Convective Heat Transfer in Rectangular Thermal Passages.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2013, vol. 75(3). 452 - 457
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/17350.