Hydraulic Analysis of Biochannels for Sustainable Urban Drainage Systems Muhamad Nurfasya Alias, Muhammad Mujahid Muhammad, Khamaruzaman Wan Yusof, Muhammad Raza Ul Mustafa and Aminuddin Ab. Ghani MATEC Web Conf., 68 (2016) 08002 Published online: 01 August 2016 DOI: 10.1051/matecconf/20166808002