Bray, M., & Lykins, C. (2012). Shadow education: Private supplementary tutoring and its implications for policy makers in Asia. Asian Development Bank.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিBray, Mark, এবং Chad Lykins. Shadow Education: Private Supplementary Tutoring and Its Implications for Policy Makers in Asia. Mandaluyong, Philippines: Asian Development Bank, 2012.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিBray, Mark, এবং Chad Lykins. Shadow Education: Private Supplementary Tutoring and Its Implications for Policy Makers in Asia. Asian Development Bank, 2012.
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