na INLIS000000000002148 0010-0121000514 Irrigation trial ron project Sedeku Semarang Demak Kudus [s.n] DHV Consulting Enggineers 1983 vii, 43 p. ill ; 30 cm 631.67 631.67 IRIGASI-JAWA TENGAH JAWA TENGAH IRIGASI SEMARANG DEMAK KUDUS. 3208 3208