Asmaa M. Hussein and  Amr Wassal and  Ahmed Farouk Al-Sadek and  A. F. Abd El-Rahman,  Multivariate Analysis of Spectroscopic Data for Agriculture Applications.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2020, vol. 166(10). 134 - 139
    [viewed 29 November 2021]. Available from: https://publications.waset.org/pdf/10011491.