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Piyaporn Pongbhai. (1997) Characterization of Pd-Ag/Al2O3 selective acetylene/ethylene hydrogenation catalyst /Piyaporn Pongbhai . Chulalongkorn University/Bangkok.
Piyaporn Pongbhai. Characterization of Pd-Ag/Al2O3 selective acetylene/ethylene hydrogenation catalyst /Piyaporn Pongbhai. . Bangkok:Chulalongkorn University, 1997.
Piyaporn Pongbhai. (1997) Characterization of Pd-Ag/Al2O3 selective acetylene/ethylene hydrogenation catalyst /Piyaporn Pongbhai . Chulalongkorn University/Bangkok.