Siew-Teng Ong, Pei-Sin Keng and Chnoong-Kheng Lee
American Journal of Applied Sciences 7 ( 4 ): 447 - 452 , 2010
Siew-Teng Ong, Pei-Sin Keng, Ai-Wen Chong, Siew-Ling Lee and Yung-Tse Hung
American Journal of Environmental Sciences 6 ( 3 ): 244 - 248 , 2010
Pei-Ling Tan, Ching-Lee Wong, Siew-Teng Ong and Siew-Ling Hii
Journal of Applied Sciences 9 ( 17 ): 3005 - 3012 , 2009
Sie-Tiong Ha, Teck-Ming Koh, Siew-Ling Lee, Guan-Yeow Yeap, Hong-Cheu Lin and Siew-Teng Ong
Liquid Crystals 37 ( 5 ): 547 - 554 , 2010