Santi purnama putri, H. Yahya, and Rizna Rahmi. “JI EMANFAATAN IMBAH AIR AUNDRY ENJADI UPUK AIR ”. ingkar: ournal of nvironmental ngineering, ol. 2, no. 2, Dec. 2021, pp. 17-28, doi:10.22373/ljee.v2i2.1365.