Sutopo, DanielCyndarbumi, Bagas2022-11-032022-11-032012-08-03https://repository.polibatam.ac.id/xmlui/handle/123456789/346idTeknik ElektroElektronikaTeknik dan Ilmu yang BerkaitanEngineering and Allied OperationsPermasalahan Sosial, Layanan Sosial,AsosiasiSocial Problems and Services, AssociationsPengukur Kadar OksigenOxygen Level MeterThesis