Naibaho, Evenin Rosa | Muntasib,Harini | Kosmaryandi, Nandi (2011)
Samosir Island is a tourist destination in the middle of Toba Lake. Toba Lake is the deepest lake in Asia and the largest volcanic lake on the world. Toba Lake has an area of 1103 km2 and Samosir Island with 647 km. There ...