The first stage

computer applicationMathematics
human rightsEarth Science space

The second stage

computer applicationArea Mathematics
Engineering StatisticsPhotogrammetry

The third stage

Spherical trianglesNumerical analyzes
cadastral surveyPhotogrammetry
computer applicationquantitative survey
error theoryenglish

The fourth stage

Geodetic Survey SystemsRemote Sensing
digital maps,computer application
equipment maintenance