4Manuela Pessanha, Cecilia Aguiar, Joaquim Bairrao. Influence of structural features on Portuguese toddler child care quality. Early Childhood Research Quarterly, 2007,22:204
5Phillipsen, L. Burchinal, M. Howes, C., & Cryer, D.. The prediction of process quality from structural features of child care. Early Childhood Research Quarterly, 1997,12 : 281-303
6Blau, D. M. The production of quality in childcare centers: Another look. Applied Developmental Science, 2000,4 (3) : 136-148
7Ghazvini, A., & Mullis, R. L. Center-based care for young children: Examining predictors of quality. The Journal of Genetic Psychology, 2002, 163 (1):112-125
8Debby Cryer, Wolfgang Tietze, Margaret Burchinal, Teresa Leal & Jesus Palacios. Predicting process quality from structural quality in preschool programs: A cross-country comparison. Early Childhood Research Quarterly, 1999,14(3) : 356