na INLIS000000000013129 20230830113906 0010-0523000020 Ekosistem Danau Toba / Farizal Nasution Nasution, Farizal Ed. Baru iv, 88 hal. : Ilus. ; 25 cm. Layanan Ruang Baca Umum Tim Editor Mitra Medan : Mitra, 2012 577.63 577.63 NAS e 978-602-245-065-8 EKOLOGI DANAU DANAU TOBA JUDUL Bibliografi hal. 86-87 230830 e 0 ind 26.561/DPDA/DS/2022 26.562/DPDA/DS/2022 26.563/DPDA/DS/2022