https://www.scirp.org/journal/paperinformation?paperid=137630
https://journals.flvc.org/ysr/article/download/129859/132278/226152
http://dx.doi.org/10.4324/9780429487231-15
https://ijbssnet.com/view.php?u=https://www.ijbssnet.com/journals/Vol_15_No_2_December_2024/10.pdf
