Home › Authors › Sobar Sutisna 👤 Sobar Sutisna 3 books Books by Sobar Sutisna NKRI dari masa ke masa NKRI dari masa ke masa 2013 Titik-titik garis pangkal Kepu Titik-titik garis pangkal Kepulauan Indonesia 2008 The three-dimensional combinat The three-dimensional combination of absolute and relative coordinates derived from satellite and terrestrial methods 1988