1. Non-State Education in South Asia;Borkowski,2021
2. Confronting the Shadow Education System: What Government Policies for What Private Tutoring?;Bray,2009
3. Shadow Education in Africa: Private Supplementary Tutoring and its Policy Implications;Bray,2021
4. Shadow education in Asia and the Pacific: features and implications of private supplementary tutoring;Bray,2023
5. Measuring private tutoring: methodological lessons and insights from Francophone Africa;Bray;Compare,2023