JUSOH, Normah; MOHD ZANANI, Niza Anira. The Effects of Different Doses of Caffeine on Attention and Cognitive Reaction Time among Universiti Pendidikan Sultan Idris (UPSI) Students. Journal of Science and Mathematics Letters, [S. l.], v. 4, p. 56–62, 2016. Disponível em: https://ejournal.upsi.edu.my/index.php/JSML/article/view/423. Acesso em: 8 apr. 2025.