URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/the-effect-of-photoperiodism-on-nutritional-potency-of-euglena-sp--indonesian-strains-dcfcd07e645d245babe887e5e2daa016/9473339d-f232-11ee-84b3-e4434b0aa6de