LIDIYA SARAGIH; SERLIN HALAWA; ROMI HUTAGALUNG; YOLAN MALAU. IMPLEMENTASI PERKEMBANGAN PRODUK SUPERVISI PENDIDIKAN DI SMK SWASTA HKBP PEMATANG SIANTAR . Jurnal Psikososial dan Pendidikan, [S. l.], v. 2, n. 2, p. 1928–1943, 2026. Disponível em: https://publisherqu.com/index.php/psikosospen/article/view/4369. Acesso em: 21 oct. 2026.