B.Y. Kamaruzzaman, A. Siti Waznah, M.S. Mohd Zahir, M.C. Ong, S. Shahbudin, K.C.A. Jalal, Z. Rina Sharlinda, A.T. Shuhada, B. Akbar John, B. Joseph, S.M. Al-Barwani and J.S. Goddard
Journal of Applied Sciences 10 ( 23 ): 3122 - 3126 , 2010