Orawan Siriratpiriya. 1989. Effect of applied sewage sludge and inorganic heavy metals on growth and metal content in plants.. , Agricultural University of Norway;
Orawan Siriratpiriya. (1989) Effect of applied sewage sludge and inorganic heavy metals on growth and metal content in plants.. . Agricultural University of Norway/Norges.
Orawan Siriratpiriya. Effect of applied sewage sludge and inorganic heavy metals on growth and metal content in plants.. . Norges:Agricultural University of Norway, 1989.
Orawan Siriratpiriya. (1989) Effect of applied sewage sludge and inorganic heavy metals on growth and metal content in plants.. . Agricultural University of Norway/Norges.