Article RETRACTED due to manipulation by the authors The Role of School Supervisors in the Quality Assurance of Physical Education Learning: A Systematic Review by Ahmad Yani, Raffly Henjilito, Iska Noviardila, Baharuddin Hasan, Hendra Setyawan, Abdul Aziz Purnomo Shidiq, Nikolina Gerdijan, Francesca Latino, Özgür Eken, Zulbahri Zulbahri, Ari Wibowo Kurniawan, Gusliana HB

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