na INLIS000000000013573 20180916024911 180916||||||||| | ||| |||| || | 978-602-7819-72-3 010-0918013573 id 639.3 639.3 Ghu b M. Ghufran H. Kordi K Budidaya belut Di pekarangan, Lahan Sempit, Lahan Kritis & Minim Air - Yogyakarta Pusaka Baru Press 2013