URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/grain-sizes-of-sand-substrates-significantly-influence-the-growth--survival--digestive-enzyme-profiles--and-gut-histology-of-sandfish--holot-dcfcd07e645d245babe887e5e2daa016/c7f4aebf-e8ed-11ef-ae8a-e4434b0aa6de
