TUMPAL J.R. SITINJAK. PELATIHAN METODOLOGI PENELITIAN: TEKNIK ANALISIS DATA PENELITIAN MENGGUNAKAN SOFTWARE EXCEL DAN SPSS BAGI DOSEN-DOSEN DI STIE SUPRA. JURNAL PENGABDIAN MANDIRI, [S. l.], v. 4, n. 11, p. 1031–1034, 2025. Disponível em: https://mail.bajangjournal.com/index.php/JPM/article/view/11771. Acesso em: 7 mar. 2026.