URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/characterization-and-application-of-gelatin-from-red-snapper-skin-for-making-wound-healing-membranes-dcfcd07e645d245babe887e5e2daa016/b2745b04-2a47-11f0-ae8a-e4434b0aa6de