Asral, Asral, 		Akbar, Musthafa, AND 		Syafri, Syafri.
" The Performance of Undershot Water Turbine Combined With Spiral Tube Pump On Empowerment of Energy Resources Local Contiguous Small River" <em>Journal of Ocean, Mechanical and Aerospace -science and engineering-</em> [Online], Volume 42 Number 1 (30 April 2017)