Sing a Song "Materi dan klasifikasinya"

Do you like a sing ?
please try to sing this song with the title song "material and classification"
Selamat mencoba :D
You can download this link :

https://drive.google.com/file/d/10Sw8WBnHNr7hhXHVPCd_LybHok6I8GUe/view?usp=sharing