PM2.5; PM10; carbon dioxide; Formaldehyde; School health
1 Graduate Program of Public Health, Faculty of Public Health, Universitas Indonesia, Depok 16424, Jawa Barat, Indonesia 2 Department of Environmental Health, Faculty of Public Health, Universitas Indonesia, Depok 16424, Jawa Barat, Indonesia 3 Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia