PUYADA, D.; PUTRA, R. R. Meta Analisis Pengaruh Problem Based Learning dan Virtual Laboratory Terhadap Hasil Belajar Siswa. INVOTEK: Jurnal Inovasi Vokasional dan Teknologi, [S. l.], v. 18, n. 2, p. 9–16, 2018. DOI: 10.24036/invotek.v18i2.257. Disponível em: http://invotek.ppj.unp.ac.id/index.php/invotek/article/view/257. Acesso em: 4 jul. 2026.