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Sulastri U, Nisa F. Optimizing Income Tax Article 21: Simultaneous Use of Gross and Gross Up Methods (Case Study of PT. X). IJP [Internet]. 2026 Jan. 27 [cited 2026 Apr. 24];3(2):64-72. Available from: https://ojs-pertapsi.petra.ac.id/index.php/pertapsi/article/view/42