Siregar, S. A. (2015). Instalasi pengolahan air limbah. Kanisius.
Chicago Style (17th ed.) CitationSiregar, Sakti A. Instalasi Pengolahan Air Limbah. Kanisius, 2015.
MLA (8th ed.) CitationSiregar, Sakti A. Instalasi Pengolahan Air Limbah. Kanisius, 2015.
Warning: These citations may not always be 100% accurate.