1. Ruiter, "Healing Soundscape: Hospital Acoustics," Euro Noise, Maastrich ISSN 2226-5147, 2015.
2. P. Dokmeci and J. Kang, "Objective parameters for acoustics comfort in enclosed space," in International Congress on Acoustics, Sidney, Australia, 2010.
3. W. Suroto, "Impact of traffic noise on city settlements, Surakarta City case," Journal of Rural and Development Vol. 1, pp. 55–62, 2010.
4. Djalante, "Analisis tingkat kebisingan di jalan raya yang menggunakan alat pemberi isyarat lalu lintas," Smartek Jurnal Vol. 8, pp. 74–83, 2010.
5. I. Ikron, "Pengaruh kebisingan lalu lintas jalan raya terhadap gangguan kesehatan anak sekolah dasar," Jurnal Kesehatan Makara Vol. 11 No. 1, pp. 32–37, 2007.