S. Setiawaty, M. Muhammad, R. Putra, R. Imanda, N. O. Deri, and R. P. Sari, “COMMUNITY EMPOWERMENT THROUGH DIVERSIFICATION OF GAYO ARABICA COFFEE WASTE INTO COVID-19 AROMATHERAPY DIFFUSER”, JPPM, vol. 3, no. 1, pp. 1–6, Mar. 2022.