S. W. Y. Yoga, A. M. Imamuddin, M. A. Anshori, and K. Koesmarijanto, “Pengaruh Roasting Kopi Dampit Terhadap Nilai Permeativitas Relatif Kopi Dampit”, Jartel, vol. 11, no. 4, pp. 182-187, Dec. 2021.