Classification
URA - Soil chemistry
GNA - Geology - soil sciences
10
LWH - Agriculture - soil sciences
5
UCS - Environmental chemistry
2
CTON - Tracer techniques
1
DOL - Programming language - Python
1
GAN - Geosciences - mathematical methods, computer applications
1
GMA - Geochemistry - general
1
GMAC - Isotope geochemistry
1
GTA - Hydrology - general
1
GTAP - Hydrological investigation methods
1
UPCE - Water chemistry
1
UPT - Water pollution control and measurement
1