Vol. 27 (4) December 2015, p. 377-386 A RAPID AND COST EFFECTIVE ULTRASONIC SOLVENT EXTRACTION METHOD FOR DETERMINATION OF λ-CYHALOTHRIN AND CYPERMETHRIN RESIDUES IN SOIL HALIMAH MUHAMAD*; BADRUL HISYAM ZAINUDIN**; ZULHILMI, Z A M‡ AND NOR KARTINI ABU BAKAR‡ FULL TEXT | DOWNLOAD PDF