B. Mayangsari, D. Fatmawati, I. Setiawan, M. Furi, and R. Sofana, “TRAINING IN MAKING NATURAL HAND SANITIZER FROM BETEL LEAF AND LIME IN THE COMMUNITY OF BREBES KETANGGUNGAN VILLAGE”, IJDE, vol. 2, no. 2, pp. 11-14, Dec. 2020.