Kittitat Leelarungroj และ Dao Suwansang janjaroen. (2015) HEAVY METAL LEACHING FROM DIFFERENT FLY ASHES USES DIFFERENT LEACHING METHODS. Chulalongkorn University:ม.ป.ท.Kittitat Leelarungroj และ Dao Suwansang janjaroen. 2015. HEAVY METAL LEACHING FROM DIFFERENT FLY ASHES USES DIFFERENT LEACHING METHODS. ม.ป.ท.:Chulalongkorn University;Kittitat Leelarungroj และ Dao Suwansang janjaroen. HEAVY METAL LEACHING FROM DIFFERENT FLY ASHES USES DIFFERENT LEACHING METHODS. ม.ป.ท.:Chulalongkorn University, 2015. Print.