Tjahjono, Gentur Adi, Universitas Sebelas Maret, Indonesia

• Vol 5, No 2 (2019): GeoEco July 2019 - Articles
  THE OBSTACLES FACTORS OF GEOGRAPHY INFORMATION SYSTEMS AND REMOTE SENSING PRACTICUM IN A HIGH SCHOOL LEVEL IN WONOGIRI DISTRICT
  Abstract  PDF
• Vol 6, No 1 (2020): GeoEco January 2020 - Articles
  TEACHER'S READINESS IN LEARNING MARITIME MATERIALS
  Abstract  PDF