Mohd Ekhwan Toriman, Mushrifah Hj Idris, Nor Rohaizah Jamil, Muhd Barzani Gasim, Pua Hock Wei, Nor Azlina Abd Azizi dan Mohd Khairul Amri Kamarudin. (2009). Bio-kejuruteraan dan kelestarian ekosistem. - . Bhg 2, 221-238.