Não informado. Star: Selections from the winning entries in the science teacher achievement recognition program. National Science Teachers Association.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Star: Selections from the Winning Entries in the Science Teacher Achievement Recognition Program. Washington: National Science Teachers Association.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Star: Selections from the Winning Entries in the Science Teacher Achievement Recognition Program. National Science Teachers Association.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.