Retraction notices

Innovation of Digital Piano Collective Class Teaching Mode under the Theory of Constructivism

Type
Retraction
Notice date
8/2/2023 0:00
Journal
Mobile Information Systems
Publisher
Hindawi
Notice DOI
10.1155/2023/9797621
Original paper DOI
10.1155/2022/6049741

Reasons

Matching venue names

Name match only, not an authoritative journal identifier.