Gallignani, M., Torres, M., Ayala, C., & Brunetto, M. del R. (1). Determination of Caffeine in Coffee by Means Fourier Transform Infrared Spectrometry. Rev. Téc. Fac. Ing. Univ. Zulia, 31(2). Recuperado a partir de https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/6302