R. A. Fadri, K. Sayuti, N. Nazir, I. Suliansyah, and H. F. Yanti, “Bioactive Compounds Profile of Solok Arabica Coffee Analyzed by GC-MS Method”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 12, no. 6, pp. 2527–2531, Dec. 2022.