THE STUDY OF SEDIMENTS IN TONDANO LAKE (CONTENTS OF HEAVY METALS, PESTICIDES, GRAIN SIZE, ORGANIC MATTER AND DIATOMS)
Oleh: Meldi T.M. Sinolungan
Sumber: http://jurnal.pdii.lipi.go.id/
Oleh: Meldi T.M. Sinolungan
Sumber: http://jurnal.pdii.lipi.go.id/