RUTH ANGELINA PARDEDE; SUDIRMAN TP LUMBAN GAOL; APRIANI SIJABAT. Efektivitas Model Pembelajaran Ulos Terhadap Keterampilan Proses Sains Siswa Di Sma Swasta Ir. H. Djuanda Tebingtinggi. PIJAR: Jurnal Pendidikan dan Pengajaran , [S. l.], v. 4, n. 2, p. 734–743, 2026. DOI: 10.58540/pijar.v4i2.1654. Disponível em: https://putrapublisher.org/index.php/pijar/article/view/1654. Acesso em: 23 may. 2026.