WASET
    Robson da Cunha Santos and  Caio Cezar R. Bonifacio and  Diego Mureb Quesada and  Gerson Gomes Cunha,  Teaching Material, Books, Publications versus the Practice: Myths and Truths about Installation and Use of Downhole Safety Valve.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 120(12). 1983 - 1988
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10006298.