2020-06-01 14:38:00

Kemija 8

Kemija makromolekula

 

https://www.youtube.com/watch?v=_6xlNyWPpB8

https://www.ekovjesnik.hr/clanak/1301/2018-bila-je-godina-borbe-protiv-plasticnog-otpada

https://www.youtube.com/watch?v=y2GZoRu7Rfs


Osnovna škola Žakanje