T. Alfiah, R. E. Handriyono, and T. N. Pramestyawati, “IMPROVING COMMUNITY AWARENESS FOR A CLEAN AND HEALTHY LIFE TO PREVENT THE SPREAD OF COVID 19 IN TANAH KALI KEDINDING, KENJERAN, SURABAYA”, J. of Com. Based Env. Eng. and Manag., vol. 5, no. 1, pp. 41–46, Feb. 2021.