Kelly, D.L., Centurino, V.A.S., Martin, M.O., & Mullis, I.V.S. (Eds.) (2020). ÷ÈÓ°Ö±²¥ 2019 Encyclopedia: Education Policy and Curriculum in Mathematics and Science. Retrieved from Boston College, ÷ÈÓ°Ö±²¥; PIRLS International Study Center website: /timss2019/encyclopedia/
ISBN: 978-1-889938-55-4
Library of Congress Catalog Card Number: 2020922703
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