Rusmanjaya, R. and Widiyarta, A. (2021) “QUALITY OF DIRECT CUSTOMER COMPLAINTS SERVICE IN DELTA TIRTA REGIONAL DRINKING WATER COMPANIES IN SIDOARJO DISTRICT, SIDOARJO REGENCY”, DIA: Jurnal Administrasi Publik, 19(2), pp. 175 - 187. doi: 10.30996/dia.v19i2.5454.