Design of a Rainwater Based Gravity Filtration System as a Sustainable Clean Water Solution for Household Scale in Kaliandra: Perancangan Sistem Filtrasi Gravitasi Berbasis Air Hujan sebagai Solusi Air Bersih Berkelanjutan Skala Rumah Tangga di Kaliandra. (2026). ANDIL Mulawarman Journal of Community Engagement, 3(3), 136-142. https://doi.org/10.30872/j6v63781