Salleh, M. M. A., & Jusoh, N. (2020). The relationship between caffeine intake and aggression levels among University Suksis Corp Athletes: Hubungan antara pengambilan kafein dan tahap keagresifan dalam kalangan Atlet Kor Suksis Universiti. Jurnal Sains Sukan & Pendidikan Jasmani, 9(2), 38–46. https://doi.org/10.37134/jsspj.vol9.2.6.2020