Radon exhalation rate and natural radioactivity in the building materials used in metropolitan Jakarta and its surrounding areas, Indonesia - Nugraha, Eka Djatnika; Modibo, Oumar Bobbo; Wahyudi,; Pradana, Radhia; Merdekawati, Rima Agustin; Megagasri, Kartini; Topandi, Abdussalam; Rachman, Agus Nur; Kurniawan, Rusbani; Fajrianshah, Evans Azka; Hidayati, Nurahmah; Winarni, Ilma Dwi; et al. (Frontiers in Public Health, 2025)