Lubis, Muhammad, 		Surya, Ganda, 		Timbang, Dirgan, 		Rizki, Fajar, 		Ardian, Sandi, 		Hanafi, Aditya, 		Ariwinata Saragih, Diaz, 		Pradipta Ramdhani, Bayu, 		Novanto, Perdi, 		Ependi, Fikriansyah, 		Nofranda, M Andrew, 		Apriliani, Dhilla, AND 		Lestari Situmorang, Arini Dewi.
" Review: Split Beam Echo Sounder in Acoustic Systems for Determine Abundance of Fish in Marine Fisheries" <em>Journal of Ocean, Mechanical and Aerospace -science and engineering-</em> [Online], Volume 40 Number 1 (28 February 2017)