OBADIAH, Jason. Designing Roadside Noise Barrier. Ultimart: Jurnal Komunikasi Visual, [S. l.], v. 10, n. 2, p. 24–32, 2018. DOI: 10.31937/ultimart.v10i2.770. Disponível em: https://ejournals.umn.ac.id/index.php/FSD/article/view/770. Acesso em: 8 aug. 2025.