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Septianus Simarmata, Jatenra Hutahaean, Ririn Tampubolon, Theresia Sigiro, Ruth Angelina Pardede, Kamucia Marbun, Septinar Silalahi, Susy Alestriani Sibagariang. Pengaruh Kepemimpinan Kepala Sekolah Terhadap Kinerja Guru di Sekolah SMA Swasta Kampus HKBP Nommensen Pematangsiantar: Penelitian. JERKIN [Internet]. 2026 Jan. 28 [cited 2026 Aug. 16];4(3):19072-7. Available from: https://jerkin.org/index.php/jerkin/article/view/5236