Ardiana TE, Cendriono N, Rachmadia R. The Effect of Auditor Independence on Internal Auditor Performance at Muhammadiyah Business Charities in Ponorogo Regency. Sustainable [Internet]. 2026 May 30 [cited 2026 Oct. 2];6(1):142-56. Available from: https://journal.um-surabaya.ac.id/sustainable/article/view/30585