URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/assessment-of-groundwater-recharge-and-groundwater-quality-in-the-upstream-of-tondano-watershed--north-sulawesi--indonesia-dcfcd07e645d245babe887e5e2daa016/3738618f-d9c0-11ee-b432-e4434b0aade8
