Centre for Educational Research and Innovation. (1991). Environment, schools and active learning. Paris, France: OECD.
শিকাগো স্টাইলে সাইটেশনCentre for Educational Research and Innovation. Environment, Schools and Active Learning. Paris, France: OECD, 1991.
এমএলএ সাইটেশনCentre for Educational Research and Innovation. Environment, Schools and Active Learning. Paris, France: OECD, 1991.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.