Não informado. (2001). Journal of Science and Mathematics Education in Southeast Asia. Seameo Regional Centre for Education in Science and Mathematics.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Journal of Science and Mathematics Education in Southeast Asia. Penang, Malasia: Seameo Regional Centre for Education in Science and Mathematics, 2001.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Journal of Science and Mathematics Education in Southeast Asia. Seameo Regional Centre for Education in Science and Mathematics, 2001.
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