SUTOMO, A. .; RIDWAN, M. .; SUSWIDIANTORO, V.; PISACHA, I. M. .; DASKAR, A. .; ROSANTI, A. S. . The Caffeine Analysis in Tea Bag and Robusta Coffee Using UHPLC Methods. International Journal of Contemporary Sciences (IJCS), [S. l.], v. 1, n. 12, p. 916–931, 2024. DOI: 10.55927/ijcs.v1i12.12040. Disponível em: https://journal.formosapublisher.org/index.php/ijcs/article/view/12040. Acesso em: 27 apr. 2026.