SpringerLink (Online service), Gotwals, A. W., & Alonzo, A. C. (2012). Learning progressions in science: Current challenges and future directions. SensePublishers.
Chicago-viite (17. p.)SpringerLink (Online service), Amelia Wenk Gotwals, ja Alicia C. Alonzo. Learning Progressions in Science: Current Challenges and Future Directions. Rotterdam: SensePublishers, 2012.
MLA-viite (8. p.)SpringerLink (Online service), et al. Learning Progressions in Science: Current Challenges and Future Directions. SensePublishers, 2012.
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