Kok Fong Lim, Andanastuti Muchtar, Rusnah Mustaffa and Chou Yong Tan
Asian Journal of Scientific Research 7 ( 4 ): 609 - 615 , 2014
Kai Yuan Theng, Andanastuti Muchtar, Norziha Yahaya and Mariyam Jameelah Ghazali
Asian Journal of Scientific Research 8 ( 3 ): 342 - 350 , 2015