URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/the-effect-of-various-photoperiodic-conditions-and-zn2--concentrations-ongrowth-rate-and-metabolite-content-in-euglena-sp--dcfcd07e645d245babe887e5e2daa016/f50e788a-41b7-11f0-ae8a-e4434b0aa6de
