1. Wjst.09.01.2012.international editorial board
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2. Wjst.09.01.2012.contents
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3. Wjst.09.01.2012.authors index
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4. Biosurfactants from yeasts
Wichuda KATEMAI

5. Removal of hydrogen sulfide gas using biofiltration-a review
Cheerawit RATTANAPAN, Weerawat OUNSANEHA

6. Factors contributing to the clay dispersion and aggregate stability of thai oxisols
Punyisa TRAKOONYINGCHAROEN, Robert John GILKES, Kumut SANGKHASILA

7. Efficacy of 2-phenoxyethanol as an anesthetic for two size of persian sturgeon acipenser persicus
Abdolreza JAHANBAKHSHI, Fardin SHALUEI, Maryam BAGHFALAKI, Fatemeh GHADERI RAMAZI, Sheyda AHMADVAND

8. Biodiesel production from palm fatty acids distillate using tungstophosphoric acid-and cs-salt immobilized-silica
Wimonrat TRAKARNPRUK

9. Effect of sic particulate on short glass fiber reinforced polyester composite in erosive wear environment
Ritesh KAUNDAL, Amar PATNAIK, Alok SATAPATHY

10. Analytical and numerical solutions of vapor flow in a flat plate heat pipe
Mohsen GOODARZI, Mohammad Mehdi RASHIDI, Amir BASIRIPARSA

11. The effects of undulator field on stored electron beam
Thananchai DASRI, Supagorn RUGMAI