1. UNESCO-UIS. ISCED 2011 Operational Manual: Guidelines for Classifying National Education Programmes and Related Qualifications. the United Nations Educational, Scientific and Cultural Organization (UNESCO), Institute for Statistics (UIS); 2015.
2. Diagnosis of indoor air contaminants in a daycare center using a long-term monitoring;Kim;Build. Environ.,2021
3. Offermans A, Zheng H, Zeiler W., 2020. Indoor Air Quality conditions within the baby bunk beds at Dutch daycare centers indicate the necessity for an improved ventilation design. In: 16th International Conference on Indoor Air Quality and Climate (INDOOR AIR 2020): International Society of Indoor Air Quality and Climate (ISIAQ), p. 1-6.
4. The effect of ventilation strategies of child care centers on indoor air quality and respiratory health of children in Singapore;Zuraimi;Indoor Air,2007
5. Exposure and risk assessment of volatile organic compounds and airborne phthalates in Singapore's Child Care Centers;Jia;Chemosphere,2019