due to COVID-19, all online courses are available for free

[isurunalaka]

https://learn.ni.com/training?fbclid=IwAR0WKCQIysE7rCCZ7BVRCn2duXzMTqMcZyD8BTjAFet_2OLjDZRznOgm60k

thawa me wage free courses thiyanawa nan comment karanna

 

[imhotep]

https://towardsdatascience.com/5-on...or-free-during-covid-19-epidemic-f5503161e861

 

[I am Janitha]

https://online-learning.harvard.edu/catalog/free

 

[crocadile]

http://www.natlib.lk/soslp/index.html