References
https://learningandexperienceblog.files.wordpress.com/2018/08/pintrich00.pdf
https://learningandexperienceblog.files.wordpress.com/2018/08/ames_archer88.pdf
https://learningandexperienceblog.files.wordpress.com/2018/08/covington92.pdf
https://learningandexperienceblog.files.wordpress.com/2018/08/senko_etal11.pdfÂ