Classification
AHL - Presentations, lectures, discussions
80
AHK - Scientific work
3
AHN - Media and communication science
2
011 - Simulation Science (advanced reading)
1
AAE - Popular science - general aspects
1
AHH - Universities - research
1
AHO - linguistics, literary studies
1
AMA - Education - general
1
AMAB - Industrial training, further education
1
ASEA - Book production, printing, paper, script
1
AYA - Sciences - general aspects
1
DTAG - MS - PowerPoint
1
HDG - Psychology, psychiatry
1
YPB - Economy - general aspects
1
YPF - Labour science
1
YPH - Secretarial work, office management
1
ZFA - Teaching materials, learning aids
1