Ali Eltayeb Muhsin and  Mohamed Elhadi Elsari,  Design of Reliable and Low Cost Substrate Heater for Thin Film Deposition.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 1503 - 1508
    [viewed 27 May 2020]. Available from: https://publications.waset.org/pdf/10164.