Dr. Phillip D. Clingan. “Caffeine Impacts the Critical Thinking Skills in Employees A Practice and Limited Quantitative Descriptive Comparative Research Study”. Journal of Medical Biomedical and Applied Sciences 8, no. 5 (maio 9, 2020): 409–428. Acessado maio 19, 2024. http://jmbm.in/index.php/jmbas/article/view/227.