Deding, J., and A. Minnaert. “Improving Child Outcomes and Quality in Early Childhood Education and Care Through Implementation of Professional Development: A Meta-Systematic Literature Review of Pre- and In-Service Approaches”. Advances in Social Sciences Research Journal, vol. 11, no. 12, Dec. 2024, pp. 33-65, doi:10.14738/assrj.1112.17997.