ANALISA USAHA BUDIDAYA IKAN PATIN (Pangasius Pangasius) Dan LELE DUMBO (Clarias Gariepinus) HASIL SUBTITUSI PELET DENGAN USUS AYAM Di KOLONG BEKAS PENAMBANGAN TIMAH: Aquaculture Analisys of Patin ( Pangasius Pangasius) and Dumbo Catfish (Clarias Gariepinus) Substitute Result the Formulated Meals (pellets) With Chicken Guts, in Kolong (the Lakes of Tin Mining Activity). AKU 2018, 1 (1), 21-26.