00627nba|a2200229 i 4500 20260818133636.0 030313n1990 xx tha d .b11839922 Archiv. P54 H57 Pichai Nimityongskul History and background of fly ash / ... and Sun Sayamipuk S.l. : s.n., [199-] 33-37 p. Article from EGAT Journal View T In Thai Fly ash History Sun Sayamipuk .b11839922 mnarc u 230803 0 030313 a b u 0 55431 55431