1. <a href="./Journals/Article/JSST/10421975.pdf" target="_blank">A study on water quality evaluation of the chao phraya river</a><br>KATSUHIKO NAKAMURO, DAMRONG KISANANUWAT, MONTHIP TABUCANON and WATTANA SUKASEM<br><hr>2. <a href="./Journals/Article/JSST/10421976.pdf" target="_blank">Acylation of 2-aryl-2-dimethylaminoacetonitriles. simple syntheses of unsymmetrical -dicarbonyl compounds and -ketoesters</a><br>VICHAI REUTRAKUL, SURACHAI NIMGIRAWATH, VICHUKORN PRAPANSIRI and YUPAYAO SRIKIRIN<br><hr>3. <a href="./Journals/Article/JSST/10421977.pdf" target="_blank">Baseline levels of cadmium, chromium, copper, lead and zinc in sea water from the gulf of thailand </a><br>MANUWADI HUNGSPREUGS<br><hr>4. <a href="./Journals/Article/JSST/10421978.pdf" target="_blank">Preliminary survey of the natural enemies of mosquitoes in thailand. </a><br>SIRIWAT WONGSIRI<br><hr>5. <a href="./Journals/Article/JSST/10421979.pdf" target="_blank">Studies on sheep red cell membrane identification of two high molecular weight intrinsic proteins</a><br>PITTAYA LIEWSAREE, CHATWALEE KALUMPHAHETI and PRAPON WILAIRAT <br><hr>