Björn Walther
Doktor der Wirtschaftswissenschaften
4.76 (148 reviews)
1
active courses
0
removed courses
Jan 2018
first content date
Jun 2024
last content date
665
total students
148
total reviews
4.76
average rating
9
total content length
Courses
Microsoft Excel - vom Einsteiger zum Fortgeschrittenen
665
students
9.5 hours
content
Jun 2024
updated
$44.99