PENGOLAHAN AIR SUMUR DI DESA PENYAK MENGGUNAKAN ARANG AKTIF TEMPURUNG KELAPA DAN SERBUK CANGKANG KERANG. PROCEEDINGS OF NATIONAL COLLOQUIUM RESEARCH AND COMMUNITY SERVICE, [S. l.], v. 2, 2018. DOI: 10.33019/snppm.v2i0.639. Disponível em: https://www.journal.ubb.ac.id/index.php/snppm/article/view/639. Acesso em: 23 may. 2026.