Masaaki Saito and  Qin Tang and  Hiroyuki Umemuro,  Text-Mining Approach for Evaluation of Affective Management Practices.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 3620 - 3627
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/15545.