WASET
    M. A. Okezue and  K. L. Clase and  S. R. Byrn and  P. Shivanand,  Disparities versus Similarities: WHO GPPQCL and ISO/IEC 17025:2017 International Standards for Quality Management Systems in Pharmaceutical Laboratories.   journal   = {International Journal of Pharmacological and Pharmaceutical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2021, vol. 180(12). 341 - 353
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10012373.