00685cas|a2200181 i 450000500170000000800410001703500150005810000190007324500830009226000520017530000100022749000300023750000490026765000560031670000250037271000440039781000620044120260818134101.0290699s1973    th uuzm rtt  00|  a1eng d  a.b108029520 aSubin Pinkayan10aHydrologic study of the Thung Ma Hiu Project /cby ... and Virgilio A. Sahagun  aBangkok :bAsian Institute of Technology,c1973  a41 p.1 aResearch report ;vno. 42  aConducted for National Energy Administration 0aHydraulic engineeringxUbon RajathanixThung Ma Hiu10aSahagun, Virgilio A.20aNational Energy Administration, Bangkok2 aAsian Institute of Technology.tResearch report ;vno. 42