“ANALYSIS OF LOSS WATER ON PIPE DISTRIBUTION ”NON REVENUE WATER (NRW)” NETWORK PDAM SURYA SEMBADA CITY OF SURABAYA WITH CAUSAL LOOP DIAGRAM (CLD): ANALYSIS OF LOSS WATER ON PIPE DISTRIBUTION ”NON REVENUE WATER (NRW)” NETWORK PDAM SURYA SEMBADA CITY OF SURABAYA WITH CAUSAL LOOP DIAGRAM (CLD)” (2018) Tibuana : Journal of Applied Industrial Engineering, 1(1), pp. 24–33. doi:10.36456/tibuana.1.1.1587.24-33.