Christina A.S, G., C. W. Lubis, and E. Masyitah. “Analisis Pajak Penghasilan (PPh) Pasal 21 Pegawai Tetap Pada PT. Maju Mandiri”. ProBisnis : Jurnal Manajemen, vol. 16, no. 06, Nov. 2025, pp. 1688-93, https://www.ejournal.joninstitute.org/index.php/ProBisnis/article/view/1239.