National Association of Independent Schools. Independent school. [National Association of Independent Schools].
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNational Association of Independent Schools. Independent School. [Boston]: [National Association of Independent Schools].
M.L.A (9 ম সংস্করণ) উদ্ধৃতিNational Association of Independent Schools. Independent School. [National Association of Independent Schools].
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.