– Ratanopad S., Kainz W. 2006. Using GIS and map data for the analysis of the expansion salinized soils In: Nayak S., Pathan S.K., Garg J.K. (eds.) Proceedings of the ISPRS Commission IV Symposium “Geospatial Databases for Sustainable Development“, September 27-30, 2006, Goa, India” (= The International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XXXVI, Part 4B, Commission IV), pp. 916-921.

       – Ratanopad S., Kainz W. 2006. Land Cover Classification and monitoring in Northeast Thailand using Landsat 5 TM Data In: Kainz W., Pucher A. (eds.) ISPRS Technical Commission II Symposium 2006, Vienna, Austria, 12-14 July 2006 (= The International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences [ISPRS] Book Series, Vol. XXXVI, Part 2), pp. 137-144.

       – Suwanlee, R.S. 2009. Study on problems and capacities, and development of teaching media on geoinformation technology of social studies teachers, Sara 4 (Secondary Education Level), Maha Sarakham Province. Association of Institutional Research and Higher Education Development, 18-20 July 2009

        – Ratanopad, S. 2002. Development of local community business and changing point in the economic crisis: The case of fresh market Ban Dindom, Maha Sarakam Province. Maha Sarakham Univeristy