“Impact of Unqualified Housing on Childhood Pneumonia: A Spatial Study in Urban and Rural of Bojonegoro, Indonesia”. Gema Lingkungan Kesehatan 23, no. 1 (January 31, 2025): 145–151. Accessed December 8, 2025. https://gelinkes.poltekkes-surabaya.ac.id/index.php/gelinkes/article/view/247.